Home / 878,957.30-1,318,567.57-318,123.02

Finding the Fourth Proportional to 878,957.30, 1,318,567.57 and 318,123.02

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Solution

The fourth proportional to 878,957.30, 1,318,567.57 and 318,123.02 is: 477,232.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,957.30 : 1,318,567.57 = 318,123.02 : x
  2. Step 2: Convert to fraction form
    878,957.30/1,318,567.57 = 318,123.02/x
  3. Step 3: Cross multiply
    878,957.30x = 1,318,567.57 × 318,123.02
  4. Step 4: Simplify right side
    878,957.30x = 419,466,699,943.57
  5. Step 5: Solve for x
    x = 419,466,699,943.57/878,957.30
  6. Step 6: Final answer
    x = 477,232.17

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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.