Home / 284,743.04-427,118.70-74,381

Finding the Fourth Proportional to 284,743.04, 427,118.70 and 74,381

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Solution

The fourth proportional to 284,743.04, 427,118.70 and 74,381 is: 111,572.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,743.04 : 427,118.70 = 74,381 : x
  2. Step 2: Convert to fraction form
    284,743.04/427,118.70 = 74,381/x
  3. Step 3: Cross multiply
    284,743.04x = 427,118.70 × 74,381
  4. Step 4: Simplify right side
    284,743.04x = 31,769,516,024.70
  5. Step 5: Solve for x
    x = 31,769,516,024.70/284,743.04
  6. Step 6: Final answer
    x = 111,572.58

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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.