Home / 742,145.25-1,024,160.85-402,613.50

Finding the Fourth Proportional to 742,145.25, 1,024,160.85 and 402,613.50

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Solution

The fourth proportional to 742,145.25, 1,024,160.85 and 402,613.50 is: 555,606.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,145.25 : 1,024,160.85 = 402,613.50 : x
  2. Step 2: Convert to fraction form
    742,145.25/1,024,160.85 = 402,613.50/x
  3. Step 3: Cross multiply
    742,145.25x = 1,024,160.85 × 402,613.50
  4. Step 4: Simplify right side
    742,145.25x = 412,340,984,381.48
  5. Step 5: Solve for x
    x = 412,340,984,381.48/742,145.25
  6. Step 6: Final answer
    x = 555,606.85

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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.