Home / 910,020.30-1,365,030.45-437,628.30

Finding the Fourth Proportional to 910,020.30, 1,365,030.45 and 437,628.30

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Solution

The fourth proportional to 910,020.30, 1,365,030.45 and 437,628.30 is: 656,442.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,020.30 : 1,365,030.45 = 437,628.30 : x
  2. Step 2: Convert to fraction form
    910,020.30/1,365,030.45 = 437,628.30/x
  3. Step 3: Cross multiply
    910,020.30x = 1,365,030.45 × 437,628.30
  4. Step 4: Simplify right side
    910,020.30x = 597,375,955,281.74
  5. Step 5: Solve for x
    x = 597,375,955,281.74/910,020.30
  6. Step 6: Final answer
    x = 656,442.45

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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.