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Finding the Fourth Proportional to 540,450.14, 745,718.54 and 339,155.42

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Solution

The fourth proportional to 540,450.14, 745,718.54 and 339,155.42 is: 467,970.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,450.14 : 745,718.54 = 339,155.42 : x
  2. Step 2: Convert to fraction form
    540,450.14/745,718.54 = 339,155.42/x
  3. Step 3: Cross multiply
    540,450.14x = 745,718.54 × 339,155.42
  4. Step 4: Simplify right side
    540,450.14x = 252,914,484,635.49
  5. Step 5: Solve for x
    x = 252,914,484,635.49/540,450.14
  6. Step 6: Final answer
    x = 467,970.06

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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.