Home / 1,120,687.60-1,680,010.80-410,544.40

Finding the Fourth Proportional to 1,120,687.60, 1,680,010.80 and 410,544.40

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Solution

The fourth proportional to 1,120,687.60, 1,680,010.80 and 410,544.40 is: 615,442.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,687.60 : 1,680,010.80 = 410,544.40 : x
  2. Step 2: Convert to fraction form
    1,120,687.60/1,680,010.80 = 410,544.40/x
  3. Step 3: Cross multiply
    1,120,687.60x = 1,680,010.80 × 410,544.40
  4. Step 4: Simplify right side
    1,120,687.60x = 689,719,025,879.52
  5. Step 5: Solve for x
    x = 689,719,025,879.52/1,120,687.60
  6. Step 6: Final answer
    x = 615,442.72

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1.5x scale

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.