Home / 822,500.78-1,233,346.52-289,944.40

Finding the Fourth Proportional to 822,500.78, 1,233,346.52 and 289,944.40

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Solution

The fourth proportional to 822,500.78, 1,233,346.52 and 289,944.40 is: 434,773.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,500.78 : 1,233,346.52 = 289,944.40 : x
  2. Step 2: Convert to fraction form
    822,500.78/1,233,346.52 = 289,944.40/x
  3. Step 3: Cross multiply
    822,500.78x = 1,233,346.52 × 289,944.40
  4. Step 4: Simplify right side
    822,500.78x = 357,601,916,733.49
  5. Step 5: Solve for x
    x = 357,601,916,733.49/822,500.78
  6. Step 6: Final answer
    x = 434,773.95

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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.