Home / 818,350.28-1,129,279.42-450,815.36

Finding the Fourth Proportional to 818,350.28, 1,129,279.42 and 450,815.36

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Solution

The fourth proportional to 818,350.28, 1,129,279.42 and 450,815.36 is: 622,100.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,350.28 : 1,129,279.42 = 450,815.36 : x
  2. Step 2: Convert to fraction form
    818,350.28/1,129,279.42 = 450,815.36/x
  3. Step 3: Cross multiply
    818,350.28x = 1,129,279.42 × 450,815.36
  4. Step 4: Simplify right side
    818,350.28x = 509,096,508,267.89
  5. Step 5: Solve for x
    x = 509,096,508,267.89/818,350.28
  6. Step 6: Final answer
    x = 622,100.98

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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.