Home / 742,666.86-1,024,904.68-420,370.04

Finding the Fourth Proportional to 742,666.86, 1,024,904.68 and 420,370.04

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Solution

The fourth proportional to 742,666.86, 1,024,904.68 and 420,370.04 is: 580,124.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,666.86 : 1,024,904.68 = 420,370.04 : x
  2. Step 2: Convert to fraction form
    742,666.86/1,024,904.68 = 420,370.04/x
  3. Step 3: Cross multiply
    742,666.86x = 1,024,904.68 × 420,370.04
  4. Step 4: Simplify right side
    742,666.86x = 430,839,221,327.79
  5. Step 5: Solve for x
    x = 430,839,221,327.79/742,666.86
  6. Step 6: Final answer
    x = 580,124.47

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Double scale
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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.