Home / 284,988.18-427,470.12-74,621.46

Finding the Fourth Proportional to 284,988.18, 427,470.12 and 74,621.46

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Solution

The fourth proportional to 284,988.18, 427,470.12 and 74,621.46 is: 111,929.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,988.18 : 427,470.12 = 74,621.46 : x
  2. Step 2: Convert to fraction form
    284,988.18/427,470.12 = 74,621.46/x
  3. Step 3: Cross multiply
    284,988.18x = 427,470.12 × 74,621.46
  4. Step 4: Simplify right side
    284,988.18x = 31,898,444,460.78
  5. Step 5: Solve for x
    x = 31,898,444,460.78/284,988.18
  6. Step 6: Final answer
    x = 111,929.01

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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.