Home / 1,149,649.90-1,724,657.10-391,562.80

Finding the Fourth Proportional to 1,149,649.90, 1,724,657.10 and 391,562.80

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Solution

The fourth proportional to 1,149,649.90, 1,724,657.10 and 391,562.80 is: 587,406.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,149,649.90 : 1,724,657.10 = 391,562.80 : x
  2. Step 2: Convert to fraction form
    1,149,649.90/1,724,657.10 = 391,562.80/x
  3. Step 3: Cross multiply
    1,149,649.90x = 1,724,657.10 × 391,562.80
  4. Step 4: Simplify right side
    1,149,649.90x = 675,311,563,115.88
  5. Step 5: Solve for x
    x = 675,311,563,115.88/1,149,649.90
  6. Step 6: Final answer
    x = 587,406.27

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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.