Home / 878,927.40-1,318,218.30-287,951.40

Finding the Fourth Proportional to 878,927.40, 1,318,218.30 and 287,951.40

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Solution

The fourth proportional to 878,927.40, 1,318,218.30 and 287,951.40 is: 431,870.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,927.40 : 1,318,218.30 = 287,951.40 : x
  2. Step 2: Convert to fraction form
    878,927.40/1,318,218.30 = 287,951.40/x
  3. Step 3: Cross multiply
    878,927.40x = 1,318,218.30 × 287,951.40
  4. Step 4: Simplify right side
    878,927.40x = 379,582,804,990.62
  5. Step 5: Solve for x
    x = 379,582,804,990.62/878,927.40
  6. Step 6: Final answer
    x = 431,870.49

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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.