Home / 722,666.60-1,083,719.53-385,523.23

Finding the Fourth Proportional to 722,666.60, 1,083,719.53 and 385,523.23

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Solution

The fourth proportional to 722,666.60, 1,083,719.53 and 385,523.23 is: 578,135.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,666.60 : 1,083,719.53 = 385,523.23 : x
  2. Step 2: Convert to fraction form
    722,666.60/1,083,719.53 = 385,523.23/x
  3. Step 3: Cross multiply
    722,666.60x = 1,083,719.53 × 385,523.23
  4. Step 4: Simplify right side
    722,666.60x = 417,799,053,619.68
  5. Step 5: Solve for x
    x = 417,799,053,619.68/722,666.60
  6. Step 6: Final answer
    x = 578,135.28

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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.