Home / 878,867.40-1,318,301.10-346,405.80

Finding the Fourth Proportional to 878,867.40, 1,318,301.10 and 346,405.80

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Solution

The fourth proportional to 878,867.40, 1,318,301.10 and 346,405.80 is: 519,608.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,867.40 : 1,318,301.10 = 346,405.80 : x
  2. Step 2: Convert to fraction form
    878,867.40/1,318,301.10 = 346,405.80/x
  3. Step 3: Cross multiply
    878,867.40x = 1,318,301.10 × 346,405.80
  4. Step 4: Simplify right side
    878,867.40x = 456,667,147,186.38
  5. Step 5: Solve for x
    x = 456,667,147,186.38/878,867.40
  6. Step 6: Final answer
    x = 519,608.70

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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.