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Finding the Fourth Proportional to 540,986.72, 746,555.28 and 299,250.32

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Solution

The fourth proportional to 540,986.72, 746,555.28 and 299,250.32 is: 412,961.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,986.72 : 746,555.28 = 299,250.32 : x
  2. Step 2: Convert to fraction form
    540,986.72/746,555.28 = 299,250.32/x
  3. Step 3: Cross multiply
    540,986.72x = 746,555.28 × 299,250.32
  4. Step 4: Simplify right side
    540,986.72x = 223,406,906,437.69
  5. Step 5: Solve for x
    x = 223,406,906,437.69/540,986.72
  6. Step 6: Final answer
    x = 412,961.90

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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.