Home / 1,215,056.40-1,822,147.20-615,818.40

Finding the Fourth Proportional to 1,215,056.40, 1,822,147.20 and 615,818.40

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Solution

The fourth proportional to 1,215,056.40, 1,822,147.20 and 615,818.40 is: 923,505.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,056.40 : 1,822,147.20 = 615,818.40 : x
  2. Step 2: Convert to fraction form
    1,215,056.40/1,822,147.20 = 615,818.40/x
  3. Step 3: Cross multiply
    1,215,056.40x = 1,822,147.20 × 615,818.40
  4. Step 4: Simplify right side
    1,215,056.40x = 1,122,111,773,268.48
  5. Step 5: Solve for x
    x = 1,122,111,773,268.48/1,215,056.40
  6. Step 6: Final answer
    x = 923,505.92

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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.