Home / 807,632.20-1,114,534.02-485,347.24

Finding the Fourth Proportional to 807,632.20, 1,114,534.02 and 485,347.24

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Solution

The fourth proportional to 807,632.20, 1,114,534.02 and 485,347.24 is: 669,780.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,632.20 : 1,114,534.02 = 485,347.24 : x
  2. Step 2: Convert to fraction form
    807,632.20/1,114,534.02 = 485,347.24/x
  3. Step 3: Cross multiply
    807,632.20x = 1,114,534.02 × 485,347.24
  4. Step 4: Simplify right side
    807,632.20x = 540,936,010,493.11
  5. Step 5: Solve for x
    x = 540,936,010,493.11/807,632.20
  6. Step 6: Final answer
    x = 669,780.14

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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.