Home / 1,327,188.48-1,990,044.16-787,664

Finding the Fourth Proportional to 1,327,188.48, 1,990,044.16 and 787,664

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Solution

The fourth proportional to 1,327,188.48, 1,990,044.16 and 787,664 is: 1,181,057.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,327,188.48 : 1,990,044.16 = 787,664 : x
  2. Step 2: Convert to fraction form
    1,327,188.48/1,990,044.16 = 787,664/x
  3. Step 3: Cross multiply
    1,327,188.48x = 1,990,044.16 × 787,664
  4. Step 4: Simplify right side
    1,327,188.48x = 1,567,486,143,242.24
  5. Step 5: Solve for x
    x = 1,567,486,143,242.24/1,327,188.48
  6. Step 6: Final answer
    x = 1,181,057.68

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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.