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Finding the Fourth Proportional to 540,450.64, 745,719.24 and 339,155.92

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Solution

The fourth proportional to 540,450.64, 745,719.24 and 339,155.92 is: 467,970.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,450.64 : 745,719.24 = 339,155.92 : x
  2. Step 2: Convert to fraction form
    540,450.64/745,719.24 = 339,155.92/x
  3. Step 3: Cross multiply
    540,450.64x = 745,719.24 × 339,155.92
  4. Step 4: Simplify right side
    540,450.64x = 252,915,094,903.90
  5. Step 5: Solve for x
    x = 252,915,094,903.90/540,450.64
  6. Step 6: Final answer
    x = 467,970.76

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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.