Home / 845,830.52-1,268,979.96-390,560.70

Finding the Fourth Proportional to 845,830.52, 1,268,979.96 and 390,560.70

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Solution

The fourth proportional to 845,830.52, 1,268,979.96 and 390,560.70 is: 585,949.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    845,830.52 : 1,268,979.96 = 390,560.70 : x
  2. Step 2: Convert to fraction form
    845,830.52/1,268,979.96 = 390,560.70/x
  3. Step 3: Cross multiply
    845,830.52x = 1,268,979.96 × 390,560.70
  4. Step 4: Simplify right side
    845,830.52x = 495,613,701,463.57
  5. Step 5: Solve for x
    x = 495,613,701,463.57/845,830.52
  6. Step 6: Final answer
    x = 585,949.18

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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.