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Finding the Fourth Proportional to 659,651.88, 910,321.32 and 357,845.88

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Solution

The fourth proportional to 659,651.88, 910,321.32 and 357,845.88 is: 493,828.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,651.88 : 910,321.32 = 357,845.88 : x
  2. Step 2: Convert to fraction form
    659,651.88/910,321.32 = 357,845.88/x
  3. Step 3: Cross multiply
    659,651.88x = 910,321.32 × 357,845.88
  4. Step 4: Simplify right side
    659,651.88x = 325,754,733,838.16
  5. Step 5: Solve for x
    x = 325,754,733,838.16/659,651.88
  6. Step 6: Final answer
    x = 493,828.25

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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.