Home / 812,672.30-1,216,675.65-497,744.30

Finding the Fourth Proportional to 812,672.30, 1,216,675.65 and 497,744.30

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Solution

The fourth proportional to 812,672.30, 1,216,675.65 and 497,744.30 is: 745,187.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,672.30 : 1,216,675.65 = 497,744.30 : x
  2. Step 2: Convert to fraction form
    812,672.30/1,216,675.65 = 497,744.30/x
  3. Step 3: Cross multiply
    812,672.30x = 1,216,675.65 × 497,744.30
  4. Step 4: Simplify right side
    812,672.30x = 605,593,369,736.30
  5. Step 5: Solve for x
    x = 605,593,369,736.30/812,672.30
  6. Step 6: Final answer
    x = 745,187.66

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Double scale
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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.