Home / 526,000.10-789,000.15-326,545.70

Finding the Fourth Proportional to 526,000.10, 789,000.15 and 326,545.70

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Solution

The fourth proportional to 526,000.10, 789,000.15 and 326,545.70 is: 489,818.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,000.10 : 789,000.15 = 326,545.70 : x
  2. Step 2: Convert to fraction form
    526,000.10/789,000.15 = 326,545.70/x
  3. Step 3: Cross multiply
    526,000.10x = 789,000.15 × 326,545.70
  4. Step 4: Simplify right side
    526,000.10x = 257,644,606,281.86
  5. Step 5: Solve for x
    x = 257,644,606,281.86/526,000.10
  6. Step 6: Final answer
    x = 489,818.55

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Similar ratio
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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.