Home / 917,362.40-1,376,043.60-385,265.30

Finding the Fourth Proportional to 917,362.40, 1,376,043.60 and 385,265.30

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Solution

The fourth proportional to 917,362.40, 1,376,043.60 and 385,265.30 is: 577,897.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,362.40 : 1,376,043.60 = 385,265.30 : x
  2. Step 2: Convert to fraction form
    917,362.40/1,376,043.60 = 385,265.30/x
  3. Step 3: Cross multiply
    917,362.40x = 1,376,043.60 × 385,265.30
  4. Step 4: Simplify right side
    917,362.40x = 530,141,850,367.08
  5. Step 5: Solve for x
    x = 530,141,850,367.08/917,362.40
  6. Step 6: Final answer
    x = 577,897.95

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.