Home / 816,679.29-1,225,268.16-417,600.39

Finding the Fourth Proportional to 816,679.29, 1,225,268.16 and 417,600.39

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Solution

The fourth proportional to 816,679.29, 1,225,268.16 and 417,600.39 is: 626,528.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,679.29 : 1,225,268.16 = 417,600.39 : x
  2. Step 2: Convert to fraction form
    816,679.29/1,225,268.16 = 417,600.39/x
  3. Step 3: Cross multiply
    816,679.29x = 1,225,268.16 × 417,600.39
  4. Step 4: Simplify right side
    816,679.29x = 511,672,461,470.58
  5. Step 5: Solve for x
    x = 511,672,461,470.58/816,679.29
  6. Step 6: Final answer
    x = 626,528.02

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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.