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Finding the Fourth Proportional to 540,862.72, 746,384.16 and 299,126.32

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Solution

The fourth proportional to 540,862.72, 746,384.16 and 299,126.32 is: 412,790.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,862.72 : 746,384.16 = 299,126.32 : x
  2. Step 2: Convert to fraction form
    540,862.72/746,384.16 = 299,126.32/x
  3. Step 3: Cross multiply
    540,862.72x = 746,384.16 × 299,126.32
  4. Step 4: Simplify right side
    540,862.72x = 223,263,147,087.09
  5. Step 5: Solve for x
    x = 223,263,147,087.09/540,862.72
  6. Step 6: Final answer
    x = 412,790.79

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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.