Home / 1,679,766.40-2,519,649.60-921,314.80

Finding the Fourth Proportional to 1,679,766.40, 2,519,649.60 and 921,314.80

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Solution

The fourth proportional to 1,679,766.40, 2,519,649.60 and 921,314.80 is: 1,381,972.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,679,766.40 : 2,519,649.60 = 921,314.80 : x
  2. Step 2: Convert to fraction form
    1,679,766.40/2,519,649.60 = 921,314.80/x
  3. Step 3: Cross multiply
    1,679,766.40x = 2,519,649.60 × 921,314.80
  4. Step 4: Simplify right side
    1,679,766.40x = 2,321,390,467,294.08
  5. Step 5: Solve for x
    x = 2,321,390,467,294.08/1,679,766.40
  6. Step 6: Final answer
    x = 1,381,972.20

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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.