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Finding the Fourth Proportional to 659,835, 910,572.30 and 358,029

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Solution

The fourth proportional to 659,835, 910,572.30 and 358,029 is: 494,080.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,835 : 910,572.30 = 358,029 : x
  2. Step 2: Convert to fraction form
    659,835/910,572.30 = 358,029/x
  3. Step 3: Cross multiply
    659,835x = 910,572.30 × 358,029
  4. Step 4: Simplify right side
    659,835x = 326,011,289,996.70
  5. Step 5: Solve for x
    x = 326,011,289,996.70/659,835
  6. Step 6: Final answer
    x = 494,080.02

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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.