Home / 742,103.18-1,024,104.36-402,571.43

Finding the Fourth Proportional to 742,103.18, 1,024,104.36 and 402,571.43

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Solution

The fourth proportional to 742,103.18, 1,024,104.36 and 402,571.43 is: 555,549.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,103.18 : 1,024,104.36 = 402,571.43 : x
  2. Step 2: Convert to fraction form
    742,103.18/1,024,104.36 = 402,571.43/x
  3. Step 3: Cross multiply
    742,103.18x = 1,024,104.36 × 402,571.43
  4. Step 4: Simplify right side
    742,103.18x = 412,275,159,234.70
  5. Step 5: Solve for x
    x = 412,275,159,234.70/742,103.18
  6. Step 6: Final answer
    x = 555,549.64

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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.