Home / 816,963.60-1,225,445.40-417,471.60

Finding the Fourth Proportional to 816,963.60, 1,225,445.40 and 417,471.60

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Solution

The fourth proportional to 816,963.60, 1,225,445.40 and 417,471.60 is: 626,207.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,963.60 : 1,225,445.40 = 417,471.60 : x
  2. Step 2: Convert to fraction form
    816,963.60/1,225,445.40 = 417,471.60/x
  3. Step 3: Cross multiply
    816,963.60x = 1,225,445.40 × 417,471.60
  4. Step 4: Simplify right side
    816,963.60x = 511,588,651,850.64
  5. Step 5: Solve for x
    x = 511,588,651,850.64/816,963.60
  6. Step 6: Final answer
    x = 626,207.40

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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.