Home / 742,429.53-1,024,553.48-402,897.78

Finding the Fourth Proportional to 742,429.53, 1,024,553.48 and 402,897.78

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Solution

The fourth proportional to 742,429.53, 1,024,553.48 and 402,897.78 is: 555,999.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,429.53 : 1,024,553.48 = 402,897.78 : x
  2. Step 2: Convert to fraction form
    742,429.53/1,024,553.48 = 402,897.78/x
  3. Step 3: Cross multiply
    742,429.53x = 1,024,553.48 × 402,897.78
  4. Step 4: Simplify right side
    742,429.53x = 412,790,320,568.79
  5. Step 5: Solve for x
    x = 412,790,320,568.79/742,429.53
  6. Step 6: Final answer
    x = 555,999.33

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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.