Home / 821,950.64-1,233,025.60-289,362.68

Finding the Fourth Proportional to 821,950.64, 1,233,025.60 and 289,362.68

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Solution

The fourth proportional to 821,950.64, 1,233,025.60 and 289,362.68 is: 434,079.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,950.64 : 1,233,025.60 = 289,362.68 : x
  2. Step 2: Convert to fraction form
    821,950.64/1,233,025.60 = 289,362.68/x
  3. Step 3: Cross multiply
    821,950.64x = 1,233,025.60 × 289,362.68
  4. Step 4: Simplify right side
    821,950.64x = 356,791,592,124.61
  5. Step 5: Solve for x
    x = 356,791,592,124.61/821,950.64
  6. Step 6: Final answer
    x = 434,079.10

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1.5x scale

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.