Home / 1,001,019.20-1,381,399.63-542,123.21

Finding the Fourth Proportional to 1,001,019.20, 1,381,399.63 and 542,123.21

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Solution

The fourth proportional to 1,001,019.20, 1,381,399.63 and 542,123.21 is: 748,126.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,001,019.20 : 1,381,399.63 = 542,123.21 : x
  2. Step 2: Convert to fraction form
    1,001,019.20/1,381,399.63 = 542,123.21/x
  3. Step 3: Cross multiply
    1,001,019.20x = 1,381,399.63 × 542,123.21
  4. Step 4: Simplify right side
    1,001,019.20x = 748,888,803,806.60
  5. Step 5: Solve for x
    x = 748,888,803,806.60/1,001,019.20
  6. Step 6: Final answer
    x = 748,126.32

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.