Home / 782,311.37-1,079,758.15-476,488.58

Finding the Fourth Proportional to 782,311.37, 1,079,758.15 and 476,488.58

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Solution

The fourth proportional to 782,311.37, 1,079,758.15 and 476,488.58 is: 657,656.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,311.37 : 1,079,758.15 = 476,488.58 : x
  2. Step 2: Convert to fraction form
    782,311.37/1,079,758.15 = 476,488.58/x
  3. Step 3: Cross multiply
    782,311.37x = 1,079,758.15 × 476,488.58
  4. Step 4: Simplify right side
    782,311.37x = 514,492,421,046.92
  5. Step 5: Solve for x
    x = 514,492,421,046.92/782,311.37
  6. Step 6: Final answer
    x = 657,656.84

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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.