Home / 917,996.40-1,377,124.20-286,844.40

Finding the Fourth Proportional to 917,996.40, 1,377,124.20 and 286,844.40

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Solution

The fourth proportional to 917,996.40, 1,377,124.20 and 286,844.40 is: 430,307.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,996.40 : 1,377,124.20 = 286,844.40 : x
  2. Step 2: Convert to fraction form
    917,996.40/1,377,124.20 = 286,844.40/x
  3. Step 3: Cross multiply
    917,996.40x = 1,377,124.20 × 286,844.40
  4. Step 4: Simplify right side
    917,996.40x = 395,020,364,874.48
  5. Step 5: Solve for x
    x = 395,020,364,874.48/917,996.40
  6. Step 6: Final answer
    x = 430,307.10

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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.