Home / 1,215,872.66-1,822,231.56-495,376.40

Finding the Fourth Proportional to 1,215,872.66, 1,822,231.56 and 495,376.40

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Solution

The fourth proportional to 1,215,872.66, 1,822,231.56 and 495,376.40 is: 742,421.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,872.66 : 1,822,231.56 = 495,376.40 : x
  2. Step 2: Convert to fraction form
    1,215,872.66/1,822,231.56 = 495,376.40/x
  3. Step 3: Cross multiply
    1,215,872.66x = 1,822,231.56 × 495,376.40
  4. Step 4: Simplify right side
    1,215,872.66x = 902,690,510,159.18
  5. Step 5: Solve for x
    x = 902,690,510,159.18/1,215,872.66
  6. Step 6: Final answer
    x = 742,421.92

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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.