Home / 812,842.88-1,121,626.88-468,675.20

Finding the Fourth Proportional to 812,842.88, 1,121,626.88 and 468,675.20

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Solution

The fourth proportional to 812,842.88, 1,121,626.88 and 468,675.20 is: 646,716.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,842.88 : 1,121,626.88 = 468,675.20 : x
  2. Step 2: Convert to fraction form
    812,842.88/1,121,626.88 = 468,675.20/x
  3. Step 3: Cross multiply
    812,842.88x = 1,121,626.88 × 468,675.20
  4. Step 4: Simplify right side
    812,842.88x = 525,678,702,309.38
  5. Step 5: Solve for x
    x = 525,678,702,309.38/812,842.88
  6. Step 6: Final answer
    x = 646,716.25

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Double scale
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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.