Home / 927,901.32-1,391,510.58-320,535.12

Finding the Fourth Proportional to 927,901.32, 1,391,510.58 and 320,535.12

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Solution

The fourth proportional to 927,901.32, 1,391,510.58 and 320,535.12 is: 480,684.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,901.32 : 1,391,510.58 = 320,535.12 : x
  2. Step 2: Convert to fraction form
    927,901.32/1,391,510.58 = 320,535.12/x
  3. Step 3: Cross multiply
    927,901.32x = 1,391,510.58 × 320,535.12
  4. Step 4: Simplify right side
    927,901.32x = 446,028,010,741.57
  5. Step 5: Solve for x
    x = 446,028,010,741.57/927,901.32
  6. Step 6: Final answer
    x = 480,684.75

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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.