Home / 526,890.10-788,002.35-442,909.30

Finding the Fourth Proportional to 526,890.10, 788,002.35 and 442,909.30

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Solution

The fourth proportional to 526,890.10, 788,002.35 and 442,909.30 is: 662,402.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,890.10 : 788,002.35 = 442,909.30 : x
  2. Step 2: Convert to fraction form
    526,890.10/788,002.35 = 442,909.30/x
  3. Step 3: Cross multiply
    526,890.10x = 788,002.35 × 442,909.30
  4. Step 4: Simplify right side
    526,890.10x = 349,013,569,236.86
  5. Step 5: Solve for x
    x = 349,013,569,236.86/526,890.10
  6. Step 6: Final answer
    x = 662,402.97

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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.