Home / 747,301.86-1,031,301.45-407,788.74

Finding the Fourth Proportional to 747,301.86, 1,031,301.45 and 407,788.74

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Solution

The fourth proportional to 747,301.86, 1,031,301.45 and 407,788.74 is: 562,762.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,301.86 : 1,031,301.45 = 407,788.74 : x
  2. Step 2: Convert to fraction form
    747,301.86/1,031,301.45 = 407,788.74/x
  3. Step 3: Cross multiply
    747,301.86x = 1,031,301.45 × 407,788.74
  4. Step 4: Simplify right side
    747,301.86x = 420,553,118,855.67
  5. Step 5: Solve for x
    x = 420,553,118,855.67/747,301.86
  6. Step 6: Final answer
    x = 562,762.04

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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.