Home / 686,282.20-1,029,007.76-307,132.34

Finding the Fourth Proportional to 686,282.20, 1,029,007.76 and 307,132.34

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Solution

The fourth proportional to 686,282.20, 1,029,007.76 and 307,132.34 is: 460,512.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,282.20 : 1,029,007.76 = 307,132.34 : x
  2. Step 2: Convert to fraction form
    686,282.20/1,029,007.76 = 307,132.34/x
  3. Step 3: Cross multiply
    686,282.20x = 1,029,007.76 × 307,132.34
  4. Step 4: Simplify right side
    686,282.20x = 316,041,561,206.96
  5. Step 5: Solve for x
    x = 316,041,561,206.96/686,282.20
  6. Step 6: Final answer
    x = 460,512.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.