Home / 816,961.52-1,127,327.92-472,728.80

Finding the Fourth Proportional to 816,961.52, 1,127,327.92 and 472,728.80

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Solution

The fourth proportional to 816,961.52, 1,127,327.92 and 472,728.80 is: 652,320.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,961.52 : 1,127,327.92 = 472,728.80 : x
  2. Step 2: Convert to fraction form
    816,961.52/1,127,327.92 = 472,728.80/x
  3. Step 3: Cross multiply
    816,961.52x = 1,127,327.92 × 472,728.80
  4. Step 4: Simplify right side
    816,961.52x = 532,920,374,828.10
  5. Step 5: Solve for x
    x = 532,920,374,828.10/816,961.52
  6. Step 6: Final answer
    x = 652,320.04

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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.