Home / 880,279.80-1,320,419.70-480,702.62

Finding the Fourth Proportional to 880,279.80, 1,320,419.70 and 480,702.62

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Solution

The fourth proportional to 880,279.80, 1,320,419.70 and 480,702.62 is: 721,053.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,279.80 : 1,320,419.70 = 480,702.62 : x
  2. Step 2: Convert to fraction form
    880,279.80/1,320,419.70 = 480,702.62/x
  3. Step 3: Cross multiply
    880,279.80x = 1,320,419.70 × 480,702.62
  4. Step 4: Simplify right side
    880,279.80x = 634,729,209,289.61
  5. Step 5: Solve for x
    x = 634,729,209,289.61/880,279.80
  6. Step 6: Final answer
    x = 721,053.93

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1.5x scale

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.