Home / 905,440.28-1,248,259.04-722,300.44

Finding the Fourth Proportional to 905,440.28, 1,248,259.04 and 722,300.44

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Solution

The fourth proportional to 905,440.28, 1,248,259.04 and 722,300.44 is: 995,778.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,440.28 : 1,248,259.04 = 722,300.44 : x
  2. Step 2: Convert to fraction form
    905,440.28/1,248,259.04 = 722,300.44/x
  3. Step 3: Cross multiply
    905,440.28x = 1,248,259.04 × 722,300.44
  4. Step 4: Simplify right side
    905,440.28x = 901,618,049,802.46
  5. Step 5: Solve for x
    x = 901,618,049,802.46/905,440.28
  6. Step 6: Final answer
    x = 995,778.60

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Double scale
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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.