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Finding the Fourth Proportional to 540,340.89, 745,650.15 and 310,933.62

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Solution

The fourth proportional to 540,340.89, 745,650.15 and 310,933.62 is: 429,076.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,340.89 : 745,650.15 = 310,933.62 : x
  2. Step 2: Convert to fraction form
    540,340.89/745,650.15 = 310,933.62/x
  3. Step 3: Cross multiply
    540,340.89x = 745,650.15 × 310,933.62
  4. Step 4: Simplify right side
    540,340.89x = 231,847,700,393.04
  5. Step 5: Solve for x
    x = 231,847,700,393.04/540,340.89
  6. Step 6: Final answer
    x = 429,076.73

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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.