Home / 861,426.30-1,283,299.47-822,564.72

Finding the Fourth Proportional to 861,426.30, 1,283,299.47 and 822,564.72

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Solution

The fourth proportional to 861,426.30, 1,283,299.47 and 822,564.72 is: 1,225,405.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,426.30 : 1,283,299.47 = 822,564.72 : x
  2. Step 2: Convert to fraction form
    861,426.30/1,283,299.47 = 822,564.72/x
  3. Step 3: Cross multiply
    861,426.30x = 1,283,299.47 × 822,564.72
  4. Step 4: Simplify right side
    861,426.30x = 1,055,596,869,216.70
  5. Step 5: Solve for x
    x = 1,055,596,869,216.70/861,426.30
  6. Step 6: Final answer
    x = 1,225,405.90

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.