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Finding the Fourth Proportional to 663,434.55, 994,562.47 and 258,533.03

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Solution

The fourth proportional to 663,434.55, 994,562.47 and 258,533.03 is: 387,569.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,434.55 : 994,562.47 = 258,533.03 : x
  2. Step 2: Convert to fraction form
    663,434.55/994,562.47 = 258,533.03/x
  3. Step 3: Cross multiply
    663,434.55x = 994,562.47 × 258,533.03
  4. Step 4: Simplify right side
    663,434.55x = 257,127,248,893.38
  5. Step 5: Solve for x
    x = 257,127,248,893.38/663,434.55
  6. Step 6: Final answer
    x = 387,569.88

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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.