Home / 784,637.28-1,082,879.28-462,451.32

Finding the Fourth Proportional to 784,637.28, 1,082,879.28 and 462,451.32

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Solution

The fourth proportional to 784,637.28, 1,082,879.28 and 462,451.32 is: 638,229.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,637.28 : 1,082,879.28 = 462,451.32 : x
  2. Step 2: Convert to fraction form
    784,637.28/1,082,879.28 = 462,451.32/x
  3. Step 3: Cross multiply
    784,637.28x = 1,082,879.28 × 462,451.32
  4. Step 4: Simplify right side
    784,637.28x = 500,778,952,436.65
  5. Step 5: Solve for x
    x = 500,778,952,436.65/784,637.28
  6. Step 6: Final answer
    x = 638,229.87

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.