Home / 821,775.46-1,134,047.72-459,199.68

Finding the Fourth Proportional to 821,775.46, 1,134,047.72 and 459,199.68

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Solution

The fourth proportional to 821,775.46, 1,134,047.72 and 459,199.68 is: 633,694.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,775.46 : 1,134,047.72 = 459,199.68 : x
  2. Step 2: Convert to fraction form
    821,775.46/1,134,047.72 = 459,199.68/x
  3. Step 3: Cross multiply
    821,775.46x = 1,134,047.72 × 459,199.68
  4. Step 4: Simplify right side
    821,775.46x = 520,754,350,128.73
  5. Step 5: Solve for x
    x = 520,754,350,128.73/821,775.46
  6. Step 6: Final answer
    x = 633,694.21

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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.