Home / 721,975.20-996,012.90-435,336.06

Finding the Fourth Proportional to 721,975.20, 996,012.90 and 435,336.06

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Solution

The fourth proportional to 721,975.20, 996,012.90 and 435,336.06 is: 600,575.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,975.20 : 996,012.90 = 435,336.06 : x
  2. Step 2: Convert to fraction form
    721,975.20/996,012.90 = 435,336.06/x
  3. Step 3: Cross multiply
    721,975.20x = 996,012.90 × 435,336.06
  4. Step 4: Simplify right side
    721,975.20x = 433,600,331,595.17
  5. Step 5: Solve for x
    x = 433,600,331,595.17/721,975.20
  6. Step 6: Final answer
    x = 600,575.11

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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.