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Finding the Fourth Proportional to 664,907.06, 997,500.71 and 215,592.91

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Solution

The fourth proportional to 664,907.06, 997,500.71 and 215,592.91 is: 323,434.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,907.06 : 997,500.71 = 215,592.91 : x
  2. Step 2: Convert to fraction form
    664,907.06/997,500.71 = 215,592.91/x
  3. Step 3: Cross multiply
    664,907.06x = 997,500.71 × 215,592.91
  4. Step 4: Simplify right side
    664,907.06x = 215,054,078,841.20
  5. Step 5: Solve for x
    x = 215,054,078,841.20/664,907.06
  6. Step 6: Final answer
    x = 323,434.79

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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.