Home / 1,421,487.80-2,131,454.10-579,087.80

Finding the Fourth Proportional to 1,421,487.80, 2,131,454.10 and 579,087.80

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Solution

The fourth proportional to 1,421,487.80, 2,131,454.10 and 579,087.80 is: 868,314.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,487.80 : 2,131,454.10 = 579,087.80 : x
  2. Step 2: Convert to fraction form
    1,421,487.80/2,131,454.10 = 579,087.80/x
  3. Step 3: Cross multiply
    1,421,487.80x = 2,131,454.10 × 579,087.80
  4. Step 4: Simplify right side
    1,421,487.80x = 1,234,299,065,569.98
  5. Step 5: Solve for x
    x = 1,234,299,065,569.98/1,421,487.80
  6. Step 6: Final answer
    x = 868,314.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.