Home / 742,115.90-1,024,121.88-402,584.16

Finding the Fourth Proportional to 742,115.90, 1,024,121.88 and 402,584.16

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Solution

The fourth proportional to 742,115.90, 1,024,121.88 and 402,584.16 is: 555,567.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,115.90 : 1,024,121.88 = 402,584.16 : x
  2. Step 2: Convert to fraction form
    742,115.90/1,024,121.88 = 402,584.16/x
  3. Step 3: Cross multiply
    742,115.90x = 1,024,121.88 × 402,584.16
  4. Step 4: Simplify right side
    742,115.90x = 412,295,246,797.42
  5. Step 5: Solve for x
    x = 412,295,246,797.42/742,115.90
  6. Step 6: Final answer
    x = 555,567.19

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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.