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Finding the Fourth Proportional to 540,999.69, 746,601.55 and 299,278.10

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Solution

The fourth proportional to 540,999.69, 746,601.55 and 299,278.10 is: 413,015.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,999.69 : 746,601.55 = 299,278.10 : x
  2. Step 2: Convert to fraction form
    540,999.69/746,601.55 = 299,278.10/x
  3. Step 3: Cross multiply
    540,999.69x = 746,601.55 × 299,278.10
  4. Step 4: Simplify right side
    540,999.69x = 223,441,489,608.05
  5. Step 5: Solve for x
    x = 223,441,489,608.05/540,999.69
  6. Step 6: Final answer
    x = 413,015.93

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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.