Home / 742,107.30-1,024,110.04-402,575.55

Finding the Fourth Proportional to 742,107.30, 1,024,110.04 and 402,575.55

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Solution

The fourth proportional to 742,107.30, 1,024,110.04 and 402,575.55 is: 555,555.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,107.30 : 1,024,110.04 = 402,575.55 : x
  2. Step 2: Convert to fraction form
    742,107.30/1,024,110.04 = 402,575.55/x
  3. Step 3: Cross multiply
    742,107.30x = 1,024,110.04 × 402,575.55
  4. Step 4: Simplify right side
    742,107.30x = 412,281,662,613.52
  5. Step 5: Solve for x
    x = 412,281,662,613.52/742,107.30
  6. Step 6: Final answer
    x = 555,555.33

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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.