Home / 1,245,145.60-1,867,718.40-615,289.60

Finding the Fourth Proportional to 1,245,145.60, 1,867,718.40 and 615,289.60

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Solution

The fourth proportional to 1,245,145.60, 1,867,718.40 and 615,289.60 is: 922,934.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,145.60 : 1,867,718.40 = 615,289.60 : x
  2. Step 2: Convert to fraction form
    1,245,145.60/1,867,718.40 = 615,289.60/x
  3. Step 3: Cross multiply
    1,245,145.60x = 1,867,718.40 × 615,289.60
  4. Step 4: Simplify right side
    1,245,145.60x = 1,149,187,707,248.64
  5. Step 5: Solve for x
    x = 1,149,187,707,248.64/1,245,145.60
  6. Step 6: Final answer
    x = 922,934.40

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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.