Home / 1,458,001.05-2,012,042.72-813,421.38

Finding the Fourth Proportional to 1,458,001.05, 2,012,042.72 and 813,421.38

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Solution

The fourth proportional to 1,458,001.05, 2,012,042.72 and 813,421.38 is: 1,122,522.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,458,001.05 : 2,012,042.72 = 813,421.38 : x
  2. Step 2: Convert to fraction form
    1,458,001.05/2,012,042.72 = 813,421.38/x
  3. Step 3: Cross multiply
    1,458,001.05x = 2,012,042.72 × 813,421.38
  4. Step 4: Simplify right side
    1,458,001.05x = 1,636,638,561,854.25
  5. Step 5: Solve for x
    x = 1,636,638,561,854.25/1,458,001.05
  6. Step 6: Final answer
    x = 1,122,522.21

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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.