Home / 712,966.20-1,069,449.30-292,543.80

Finding the Fourth Proportional to 712,966.20, 1,069,449.30 and 292,543.80

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Solution

The fourth proportional to 712,966.20, 1,069,449.30 and 292,543.80 is: 438,815.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,966.20 : 1,069,449.30 = 292,543.80 : x
  2. Step 2: Convert to fraction form
    712,966.20/1,069,449.30 = 292,543.80/x
  3. Step 3: Cross multiply
    712,966.20x = 1,069,449.30 × 292,543.80
  4. Step 4: Simplify right side
    712,966.20x = 312,860,762,129.34
  5. Step 5: Solve for x
    x = 312,860,762,129.34/712,966.20
  6. Step 6: Final answer
    x = 438,815.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.