Home / 880,278.30-1,320,417.45-480,701.12

Finding the Fourth Proportional to 880,278.30, 1,320,417.45 and 480,701.12

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Solution

The fourth proportional to 880,278.30, 1,320,417.45 and 480,701.12 is: 721,051.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,278.30 : 1,320,417.45 = 480,701.12 : x
  2. Step 2: Convert to fraction form
    880,278.30/1,320,417.45 = 480,701.12/x
  3. Step 3: Cross multiply
    880,278.30x = 1,320,417.45 × 480,701.12
  4. Step 4: Simplify right side
    880,278.30x = 634,726,140,480.46
  5. Step 5: Solve for x
    x = 634,726,140,480.46/880,278.30
  6. Step 6: Final answer
    x = 721,051.67

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Double scale
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Similar ratio
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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.