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Finding the Fourth Proportional to 535,500.10, 804,562.35 and 402,639.85

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Solution

The fourth proportional to 535,500.10, 804,562.35 and 402,639.85 is: 604,946.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,500.10 : 804,562.35 = 402,639.85 : x
  2. Step 2: Convert to fraction form
    535,500.10/804,562.35 = 402,639.85/x
  3. Step 3: Cross multiply
    535,500.10x = 804,562.35 × 402,639.85
  4. Step 4: Simplify right side
    535,500.10x = 323,948,863,919.65
  5. Step 5: Solve for x
    x = 323,948,863,919.65/535,500.10
  6. Step 6: Final answer
    x = 604,946.41

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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.