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Finding the Fourth Proportional to 540,096.64, 745,377 and 298,400.40

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Solution

The fourth proportional to 540,096.64, 745,377 and 298,400.40 is: 411,816.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,096.64 : 745,377 = 298,400.40 : x
  2. Step 2: Convert to fraction form
    540,096.64/745,377 = 298,400.40/x
  3. Step 3: Cross multiply
    540,096.64x = 745,377 × 298,400.40
  4. Step 4: Simplify right side
    540,096.64x = 222,420,794,950.80
  5. Step 5: Solve for x
    x = 222,420,794,950.80/540,096.64
  6. Step 6: Final answer
    x = 411,816.66

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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.