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Finding the Fourth Proportional to 492,010.80, 679,348.80 and 484,166.40

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Solution

The fourth proportional to 492,010.80, 679,348.80 and 484,166.40 is: 668,517.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,010.80 : 679,348.80 = 484,166.40 : x
  2. Step 2: Convert to fraction form
    492,010.80/679,348.80 = 484,166.40/x
  3. Step 3: Cross multiply
    492,010.80x = 679,348.80 × 484,166.40
  4. Step 4: Simplify right side
    492,010.80x = 328,917,862,840.32
  5. Step 5: Solve for x
    x = 328,917,862,840.32/492,010.80
  6. Step 6: Final answer
    x = 668,517.57

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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.