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Finding the Fourth Proportional to 659,959.76, 910,744.47 and 358,153.76

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Solution

The fourth proportional to 659,959.76, 910,744.47 and 358,153.76 is: 494,252.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,959.76 : 910,744.47 = 358,153.76 : x
  2. Step 2: Convert to fraction form
    659,959.76/910,744.47 = 358,153.76/x
  3. Step 3: Cross multiply
    659,959.76x = 910,744.47 × 358,153.76
  4. Step 4: Simplify right side
    659,959.76x = 326,186,551,775.99
  5. Step 5: Solve for x
    x = 326,186,551,775.99/659,959.76
  6. Step 6: Final answer
    x = 494,252.19

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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.