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Finding the Fourth Proportional to 659,874.04, 910,643.82 and 358,068.28

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Solution

The fourth proportional to 659,874.04, 910,643.82 and 358,068.28 is: 494,143.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,874.04 : 910,643.82 = 358,068.28 : x
  2. Step 2: Convert to fraction form
    659,874.04/910,643.82 = 358,068.28/x
  3. Step 3: Cross multiply
    659,874.04x = 910,643.82 × 358,068.28
  4. Step 4: Simplify right side
    659,874.04x = 326,072,666,320.03
  5. Step 5: Solve for x
    x = 326,072,666,320.03/659,874.04
  6. Step 6: Final answer
    x = 494,143.80

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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.