Home / 853,304.93-1,280,047.35-284,487.76

Finding the Fourth Proportional to 853,304.93, 1,280,047.35 and 284,487.76

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Solution

The fourth proportional to 853,304.93, 1,280,047.35 and 284,487.76 is: 426,761.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,304.93 : 1,280,047.35 = 284,487.76 : x
  2. Step 2: Convert to fraction form
    853,304.93/1,280,047.35 = 284,487.76/x
  3. Step 3: Cross multiply
    853,304.93x = 1,280,047.35 × 284,487.76
  4. Step 4: Simplify right side
    853,304.93x = 364,157,796,895.20
  5. Step 5: Solve for x
    x = 364,157,796,895.20/853,304.93
  6. Step 6: Final answer
    x = 426,761.63

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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.