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Finding the Fourth Proportional to 466,079.90, 643,278.60 and 291,730.98

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Solution

The fourth proportional to 466,079.90, 643,278.60 and 291,730.98 is: 402,644.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    466,079.90 : 643,278.60 = 291,730.98 : x
  2. Step 2: Convert to fraction form
    466,079.90/643,278.60 = 291,730.98/x
  3. Step 3: Cross multiply
    466,079.90x = 643,278.60 × 291,730.98
  4. Step 4: Simplify right side
    466,079.90x = 187,664,296,391.03
  5. Step 5: Solve for x
    x = 187,664,296,391.03/466,079.90
  6. Step 6: Final answer
    x = 402,644.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.