Home / 1,605,435.71-2,215,416.15-916,972.38

Finding the Fourth Proportional to 1,605,435.71, 2,215,416.15 and 916,972.38

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Solution

The fourth proportional to 1,605,435.71, 2,215,416.15 and 916,972.38 is: 1,265,373.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,605,435.71 : 2,215,416.15 = 916,972.38 : x
  2. Step 2: Convert to fraction form
    1,605,435.71/2,215,416.15 = 916,972.38/x
  3. Step 3: Cross multiply
    1,605,435.71x = 2,215,416.15 × 916,972.38
  4. Step 4: Simplify right side
    1,605,435.71x = 2,031,475,419,755.94
  5. Step 5: Solve for x
    x = 2,031,475,419,755.94/1,605,435.71
  6. Step 6: Final answer
    x = 1,265,373.26

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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.