Home / 753,778.76-1,039,747.76-495,685.24

Finding the Fourth Proportional to 753,778.76, 1,039,747.76 and 495,685.24

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Solution

The fourth proportional to 753,778.76, 1,039,747.76 and 495,685.24 is: 683,738.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,778.76 : 1,039,747.76 = 495,685.24 : x
  2. Step 2: Convert to fraction form
    753,778.76/1,039,747.76 = 495,685.24/x
  3. Step 3: Cross multiply
    753,778.76x = 1,039,747.76 × 495,685.24
  4. Step 4: Simplify right side
    753,778.76x = 515,387,617,955.06
  5. Step 5: Solve for x
    x = 515,387,617,955.06/753,778.76
  6. Step 6: Final answer
    x = 683,738.58

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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.