Home / 903,809.28-1,246,121.96-661,671.48

Finding the Fourth Proportional to 903,809.28, 1,246,121.96 and 661,671.48

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Solution

The fourth proportional to 903,809.28, 1,246,121.96 and 661,671.48 is: 912,275.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,809.28 : 1,246,121.96 = 661,671.48 : x
  2. Step 2: Convert to fraction form
    903,809.28/1,246,121.96 = 661,671.48/x
  3. Step 3: Cross multiply
    903,809.28x = 1,246,121.96 × 661,671.48
  4. Step 4: Simplify right side
    903,809.28x = 824,523,361,533.70
  5. Step 5: Solve for x
    x = 824,523,361,533.70/903,809.28
  6. Step 6: Final answer
    x = 912,275.83

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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.