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Finding the Fourth Proportional to 659,702.58, 910,391.33 and 357,896.58

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Solution

The fourth proportional to 659,702.58, 910,391.33 and 357,896.58 is: 493,898.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,702.58 : 910,391.33 = 357,896.58 : x
  2. Step 2: Convert to fraction form
    659,702.58/910,391.33 = 357,896.58/x
  3. Step 3: Cross multiply
    659,702.58x = 910,391.33 × 357,896.58
  4. Step 4: Simplify right side
    659,702.58x = 325,825,941,679.17
  5. Step 5: Solve for x
    x = 325,825,941,679.17/659,702.58
  6. Step 6: Final answer
    x = 493,898.24

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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.