Home / 869,935.76-1,200,508.86-482,809.66

Finding the Fourth Proportional to 869,935.76, 1,200,508.86 and 482,809.66

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Solution

The fourth proportional to 869,935.76, 1,200,508.86 and 482,809.66 is: 666,275.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,935.76 : 1,200,508.86 = 482,809.66 : x
  2. Step 2: Convert to fraction form
    869,935.76/1,200,508.86 = 482,809.66/x
  3. Step 3: Cross multiply
    869,935.76x = 1,200,508.86 × 482,809.66
  4. Step 4: Simplify right side
    869,935.76x = 579,617,274,523.59
  5. Step 5: Solve for x
    x = 579,617,274,523.59/869,935.76
  6. Step 6: Final answer
    x = 666,275.95

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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.