Home / 813,200.71-1,122,223.56-450,630.62

Finding the Fourth Proportional to 813,200.71, 1,122,223.56 and 450,630.62

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Solution

The fourth proportional to 813,200.71, 1,122,223.56 and 450,630.62 is: 621,873.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,200.71 : 1,122,223.56 = 450,630.62 : x
  2. Step 2: Convert to fraction form
    813,200.71/1,122,223.56 = 450,630.62/x
  3. Step 3: Cross multiply
    813,200.71x = 1,122,223.56 × 450,630.62
  4. Step 4: Simplify right side
    813,200.71x = 505,708,293,010.29
  5. Step 5: Solve for x
    x = 505,708,293,010.29/813,200.71
  6. Step 6: Final answer
    x = 621,873.90

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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.