Home / 879,654.27-1,213,820.60-492,491.55

Finding the Fourth Proportional to 879,654.27, 1,213,820.60 and 492,491.55

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Solution

The fourth proportional to 879,654.27, 1,213,820.60 and 492,491.55 is: 679,581.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,654.27 : 1,213,820.60 = 492,491.55 : x
  2. Step 2: Convert to fraction form
    879,654.27/1,213,820.60 = 492,491.55/x
  3. Step 3: Cross multiply
    879,654.27x = 1,213,820.60 × 492,491.55
  4. Step 4: Simplify right side
    879,654.27x = 597,796,386,253.47
  5. Step 5: Solve for x
    x = 597,796,386,253.47/879,654.27
  6. Step 6: Final answer
    x = 679,581.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.