Home / 747,749.30-1,031,888.77-408,217.55

Finding the Fourth Proportional to 747,749.30, 1,031,888.77 and 408,217.55

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Solution

The fourth proportional to 747,749.30, 1,031,888.77 and 408,217.55 is: 563,337.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,749.30 : 1,031,888.77 = 408,217.55 : x
  2. Step 2: Convert to fraction form
    747,749.30/1,031,888.77 = 408,217.55/x
  3. Step 3: Cross multiply
    747,749.30x = 1,031,888.77 × 408,217.55
  4. Step 4: Simplify right side
    747,749.30x = 421,235,099,381.93
  5. Step 5: Solve for x
    x = 421,235,099,381.93/747,749.30
  6. Step 6: Final answer
    x = 563,337.34

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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.