Home / 1,348,405.66-1,861,175.10-775,630.36

Finding the Fourth Proportional to 1,348,405.66, 1,861,175.10 and 775,630.36

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Solution

The fourth proportional to 1,348,405.66, 1,861,175.10 and 775,630.36 is: 1,070,585.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,348,405.66 : 1,861,175.10 = 775,630.36 : x
  2. Step 2: Convert to fraction form
    1,348,405.66/1,861,175.10 = 775,630.36/x
  3. Step 3: Cross multiply
    1,348,405.66x = 1,861,175.10 × 775,630.36
  4. Step 4: Simplify right side
    1,348,405.66x = 1,443,583,912,836.04
  5. Step 5: Solve for x
    x = 1,443,583,912,836.04/1,348,405.66
  6. Step 6: Final answer
    x = 1,070,585.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.