Home / 1,425,129.69-1,966,658.69-813,476.22

Finding the Fourth Proportional to 1,425,129.69, 1,966,658.69 and 813,476.22

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Solution

The fourth proportional to 1,425,129.69, 1,966,658.69 and 813,476.22 is: 1,122,585.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,129.69 : 1,966,658.69 = 813,476.22 : x
  2. Step 2: Convert to fraction form
    1,425,129.69/1,966,658.69 = 813,476.22/x
  3. Step 3: Cross multiply
    1,425,129.69x = 1,966,658.69 × 813,476.22
  4. Step 4: Simplify right side
    1,425,129.69x = 1,599,830,067,254.27
  5. Step 5: Solve for x
    x = 1,599,830,067,254.27/1,425,129.69
  6. Step 6: Final answer
    x = 1,122,585.60

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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.