Home / 284,746.04-427,123.20-74,384

Finding the Fourth Proportional to 284,746.04, 427,123.20 and 74,384

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Solution

The fourth proportional to 284,746.04, 427,123.20 and 74,384 is: 111,577.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,746.04 : 427,123.20 = 74,384 : x
  2. Step 2: Convert to fraction form
    284,746.04/427,123.20 = 74,384/x
  3. Step 3: Cross multiply
    284,746.04x = 427,123.20 × 74,384
  4. Step 4: Simplify right side
    284,746.04x = 31,771,132,108.80
  5. Step 5: Solve for x
    x = 31,771,132,108.80/284,746.04
  6. Step 6: Final answer
    x = 111,577.08

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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.