Home / 738,769.56-1,107,710.82-338,909.28

Finding the Fourth Proportional to 738,769.56, 1,107,710.82 and 338,909.28

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Solution

The fourth proportional to 738,769.56, 1,107,710.82 and 338,909.28 is: 508,160.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,769.56 : 1,107,710.82 = 338,909.28 : x
  2. Step 2: Convert to fraction form
    738,769.56/1,107,710.82 = 338,909.28/x
  3. Step 3: Cross multiply
    738,769.56x = 1,107,710.82 × 338,909.28
  4. Step 4: Simplify right side
    738,769.56x = 375,413,476,454.41
  5. Step 5: Solve for x
    x = 375,413,476,454.41/738,769.56
  6. Step 6: Final answer
    x = 508,160.46

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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.