Home / 742,400.88-1,024,515.96-402,869.04

Finding the Fourth Proportional to 742,400.88, 1,024,515.96 and 402,869.04

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Solution

The fourth proportional to 742,400.88, 1,024,515.96 and 402,869.04 is: 555,960.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,400.88 : 1,024,515.96 = 402,869.04 : x
  2. Step 2: Convert to fraction form
    742,400.88/1,024,515.96 = 402,869.04/x
  3. Step 3: Cross multiply
    742,400.88x = 1,024,515.96 × 402,869.04
  4. Step 4: Simplify right side
    742,400.88x = 412,745,761,269.88
  5. Step 5: Solve for x
    x = 412,745,761,269.88/742,400.88
  6. Step 6: Final answer
    x = 555,960.77

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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.