Home / 813,820.01-1,220,311.75-477,523.65

Finding the Fourth Proportional to 813,820.01, 1,220,311.75 and 477,523.65

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Solution

The fourth proportional to 813,820.01, 1,220,311.75 and 477,523.65 is: 716,040.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,820.01 : 1,220,311.75 = 477,523.65 : x
  2. Step 2: Convert to fraction form
    813,820.01/1,220,311.75 = 477,523.65/x
  3. Step 3: Cross multiply
    813,820.01x = 1,220,311.75 × 477,523.65
  4. Step 4: Simplify right side
    813,820.01x = 582,727,726,618.64
  5. Step 5: Solve for x
    x = 582,727,726,618.64/813,820.01
  6. Step 6: Final answer
    x = 716,040.06

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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.