Home / 878,002.08-1,316,865.88-278,884.40

Finding the Fourth Proportional to 878,002.08, 1,316,865.88 and 278,884.40

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Solution

The fourth proportional to 878,002.08, 1,316,865.88 and 278,884.40 is: 418,283.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,002.08 : 1,316,865.88 = 278,884.40 : x
  2. Step 2: Convert to fraction form
    878,002.08/1,316,865.88 = 278,884.40/x
  3. Step 3: Cross multiply
    878,002.08x = 1,316,865.88 × 278,884.40
  4. Step 4: Simplify right side
    878,002.08x = 367,253,350,824.27
  5. Step 5: Solve for x
    x = 367,253,350,824.27/878,002.08
  6. Step 6: Final answer
    x = 418,283.01

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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.