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Finding the Fourth Proportional to 661,260.77, 912,549.86 and 370,936.70

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Solution

The fourth proportional to 661,260.77, 912,549.86 and 370,936.70 is: 511,898.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,260.77 : 912,549.86 = 370,936.70 : x
  2. Step 2: Convert to fraction form
    661,260.77/912,549.86 = 370,936.70/x
  3. Step 3: Cross multiply
    661,260.77x = 912,549.86 × 370,936.70
  4. Step 4: Simplify right side
    661,260.77x = 338,498,227,236.43
  5. Step 5: Solve for x
    x = 338,498,227,236.43/661,260.77
  6. Step 6: Final answer
    x = 511,898.25

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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.