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Finding the Fourth Proportional to 537,310.80, 807,715.80 and 380,624.40

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Solution

The fourth proportional to 537,310.80, 807,715.80 and 380,624.40 is: 572,176.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,310.80 : 807,715.80 = 380,624.40 : x
  2. Step 2: Convert to fraction form
    537,310.80/807,715.80 = 380,624.40/x
  3. Step 3: Cross multiply
    537,310.80x = 807,715.80 × 380,624.40
  4. Step 4: Simplify right side
    537,310.80x = 307,436,341,745.52
  5. Step 5: Solve for x
    x = 307,436,341,745.52/537,310.80
  6. Step 6: Final answer
    x = 572,176.00

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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.