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Finding the Fourth Proportional to 988,510.38, 1,364,101 and 580,654

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Solution

The fourth proportional to 988,510.38, 1,364,101 and 580,654 is: 801,277.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,510.38 : 1,364,101 = 580,654 : x
  2. Step 2: Convert to fraction form
    988,510.38/1,364,101 = 580,654/x
  3. Step 3: Cross multiply
    988,510.38x = 1,364,101 × 580,654
  4. Step 4: Simplify right side
    988,510.38x = 792,070,702,054
  5. Step 5: Solve for x
    x = 792,070,702,054/988,510.38
  6. Step 6: Final answer
    x = 801,277.07

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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.