Home / 945,701.52-1,305,042.72-515,981.52

Finding the Fourth Proportional to 945,701.52, 1,305,042.72 and 515,981.52

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Solution

The fourth proportional to 945,701.52, 1,305,042.72 and 515,981.52 is: 712,040.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,701.52 : 1,305,042.72 = 515,981.52 : x
  2. Step 2: Convert to fraction form
    945,701.52/1,305,042.72 = 515,981.52/x
  3. Step 3: Cross multiply
    945,701.52x = 1,305,042.72 × 515,981.52
  4. Step 4: Simplify right side
    945,701.52x = 673,377,926,330.53
  5. Step 5: Solve for x
    x = 673,377,926,330.53/945,701.52
  6. Step 6: Final answer
    x = 712,040.65

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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.