Home / 1,007,660.22-1,390,857.16-663,747.18

Finding the Fourth Proportional to 1,007,660.22, 1,390,857.16 and 663,747.18

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Solution

The fourth proportional to 1,007,660.22, 1,390,857.16 and 663,747.18 is: 916,159.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,007,660.22 : 1,390,857.16 = 663,747.18 : x
  2. Step 2: Convert to fraction form
    1,007,660.22/1,390,857.16 = 663,747.18/x
  3. Step 3: Cross multiply
    1,007,660.22x = 1,390,857.16 × 663,747.18
  4. Step 4: Simplify right side
    1,007,660.22x = 923,177,517,732.81
  5. Step 5: Solve for x
    x = 923,177,517,732.81/1,007,660.22
  6. Step 6: Final answer
    x = 916,159.53

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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.