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Finding the Fourth Proportional to 660,278.52, 911,190.06 and 358,473.24

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Solution

The fourth proportional to 660,278.52, 911,190.06 and 358,473.24 is: 494,696.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,278.52 : 911,190.06 = 358,473.24 : x
  2. Step 2: Convert to fraction form
    660,278.52/911,190.06 = 358,473.24/x
  3. Step 3: Cross multiply
    660,278.52x = 911,190.06 × 358,473.24
  4. Step 4: Simplify right side
    660,278.52x = 326,637,253,063.99
  5. Step 5: Solve for x
    x = 326,637,253,063.99/660,278.52
  6. Step 6: Final answer
    x = 494,696.17

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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.