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Finding the Fourth Proportional to 492,033.60, 679,070.88 and 277,215.12

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Solution

The fourth proportional to 492,033.60, 679,070.88 and 277,215.12 is: 382,593.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,033.60 : 679,070.88 = 277,215.12 : x
  2. Step 2: Convert to fraction form
    492,033.60/679,070.88 = 277,215.12/x
  3. Step 3: Cross multiply
    492,033.60x = 679,070.88 × 277,215.12
  4. Step 4: Simplify right side
    492,033.60x = 188,248,715,487.71
  5. Step 5: Solve for x
    x = 188,248,715,487.71/492,033.60
  6. Step 6: Final answer
    x = 382,593.21

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1.5x scale

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.