Home / 783,733.18-1,175,932.59-428,332

Finding the Fourth Proportional to 783,733.18, 1,175,932.59 and 428,332

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Solution

The fourth proportional to 783,733.18, 1,175,932.59 and 428,332 is: 642,679.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,733.18 : 1,175,932.59 = 428,332 : x
  2. Step 2: Convert to fraction form
    783,733.18/1,175,932.59 = 428,332/x
  3. Step 3: Cross multiply
    783,733.18x = 1,175,932.59 × 428,332
  4. Step 4: Simplify right side
    783,733.18x = 503,689,558,139.88
  5. Step 5: Solve for x
    x = 503,689,558,139.88/783,733.18
  6. Step 6: Final answer
    x = 642,679.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.