Home / 1,458,000.81-2,012,042.38-813,421.14

Finding the Fourth Proportional to 1,458,000.81, 2,012,042.38 and 813,421.14

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Solution

The fourth proportional to 1,458,000.81, 2,012,042.38 and 813,421.14 is: 1,122,521.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,458,000.81 : 2,012,042.38 = 813,421.14 : x
  2. Step 2: Convert to fraction form
    1,458,000.81/2,012,042.38 = 813,421.14/x
  3. Step 3: Cross multiply
    1,458,000.81x = 2,012,042.38 × 813,421.14
  4. Step 4: Simplify right side
    1,458,000.81x = 1,636,637,798,414.37
  5. Step 5: Solve for x
    x = 1,636,637,798,414.37/1,458,000.81
  6. Step 6: Final answer
    x = 1,122,521.87

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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.