Home / 1,458,001.47-2,012,043.29-813,421.79

Finding the Fourth Proportional to 1,458,001.47, 2,012,043.29 and 813,421.79

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Solution

The fourth proportional to 1,458,001.47, 2,012,043.29 and 813,421.79 is: 1,122,522.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,458,001.47 : 2,012,043.29 = 813,421.79 : x
  2. Step 2: Convert to fraction form
    1,458,001.47/2,012,043.29 = 813,421.79/x
  3. Step 3: Cross multiply
    1,458,001.47x = 2,012,043.29 × 813,421.79
  4. Step 4: Simplify right side
    1,458,001.47x = 1,636,639,855,472.29
  5. Step 5: Solve for x
    x = 1,636,639,855,472.29/1,458,001.47
  6. Step 6: Final answer
    x = 1,122,522.78

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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.