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Finding the Fourth Proportional to 659,046.04, 988,574.28 and 431,533.42

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Solution

The fourth proportional to 659,046.04, 988,574.28 and 431,533.42 is: 647,303.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,046.04 : 988,574.28 = 431,533.42 : x
  2. Step 2: Convert to fraction form
    659,046.04/988,574.28 = 431,533.42/x
  3. Step 3: Cross multiply
    659,046.04x = 988,574.28 × 431,533.42
  4. Step 4: Simplify right side
    659,046.04x = 426,602,839,972.44
  5. Step 5: Solve for x
    x = 426,602,839,972.44/659,046.04
  6. Step 6: Final answer
    x = 647,303.55

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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.