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Finding the Fourth Proportional to 519,300.56, 716,689.32 and 304,449.68

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Solution

The fourth proportional to 519,300.56, 716,689.32 and 304,449.68 is: 420,172.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,300.56 : 716,689.32 = 304,449.68 : x
  2. Step 2: Convert to fraction form
    519,300.56/716,689.32 = 304,449.68/x
  3. Step 3: Cross multiply
    519,300.56x = 716,689.32 × 304,449.68
  4. Step 4: Simplify right side
    519,300.56x = 218,195,834,133.42
  5. Step 5: Solve for x
    x = 218,195,834,133.42/519,300.56
  6. Step 6: Final answer
    x = 420,172.54

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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.