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Finding the Fourth Proportional to 497,686.20, 746,529.30 and 308,729.40

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Solution

The fourth proportional to 497,686.20, 746,529.30 and 308,729.40 is: 463,094.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,686.20 : 746,529.30 = 308,729.40 : x
  2. Step 2: Convert to fraction form
    497,686.20/746,529.30 = 308,729.40/x
  3. Step 3: Cross multiply
    497,686.20x = 746,529.30 × 308,729.40
  4. Step 4: Simplify right side
    497,686.20x = 230,475,542,871.42
  5. Step 5: Solve for x
    x = 230,475,542,871.42/497,686.20
  6. Step 6: Final answer
    x = 463,094.10

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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.