Home / 1,458,000.85-2,012,042.43-813,421.17

Finding the Fourth Proportional to 1,458,000.85, 2,012,042.43 and 813,421.17

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Solution

The fourth proportional to 1,458,000.85, 2,012,042.43 and 813,421.17 is: 1,122,521.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,458,000.85 : 2,012,042.43 = 813,421.17 : x
  2. Step 2: Convert to fraction form
    1,458,000.85/2,012,042.43 = 813,421.17/x
  3. Step 3: Cross multiply
    1,458,000.85x = 2,012,042.43 × 813,421.17
  4. Step 4: Simplify right side
    1,458,000.85x = 1,636,637,903,433.14
  5. Step 5: Solve for x
    x = 1,636,637,903,433.14/1,458,000.85
  6. Step 6: Final answer
    x = 1,122,521.92

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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.