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Finding the Fourth Proportional to 659,641.92, 910,307.60 and 357,835.92

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Solution

The fourth proportional to 659,641.92, 910,307.60 and 357,835.92 is: 493,814.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,641.92 : 910,307.60 = 357,835.92 : x
  2. Step 2: Convert to fraction form
    659,641.92/910,307.60 = 357,835.92/x
  3. Step 3: Cross multiply
    659,641.92x = 910,307.60 × 357,835.92
  4. Step 4: Simplify right side
    659,641.92x = 325,740,757,528.99
  5. Step 5: Solve for x
    x = 325,740,757,528.99/659,641.92
  6. Step 6: Final answer
    x = 493,814.52

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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.