Home / 725,215.77-999,990.97-495,810.41

Finding the Fourth Proportional to 725,215.77, 999,990.97 and 495,810.41

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Solution

The fourth proportional to 725,215.77, 999,990.97 and 495,810.41 is: 683,666.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,215.77 : 999,990.97 = 495,810.41 : x
  2. Step 2: Convert to fraction form
    725,215.77/999,990.97 = 495,810.41/x
  3. Step 3: Cross multiply
    725,215.77x = 999,990.97 × 495,810.41
  4. Step 4: Simplify right side
    725,215.77x = 495,805,926,592.52
  5. Step 5: Solve for x
    x = 495,805,926,592.52/725,215.77
  6. Step 6: Final answer
    x = 683,666.77

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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.