Home / 782,179.94-1,079,423.64-510,421.70

Finding the Fourth Proportional to 782,179.94, 1,079,423.64 and 510,421.70

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Solution

The fourth proportional to 782,179.94, 1,079,423.64 and 510,421.70 is: 704,391.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,179.94 : 1,079,423.64 = 510,421.70 : x
  2. Step 2: Convert to fraction form
    782,179.94/1,079,423.64 = 510,421.70/x
  3. Step 3: Cross multiply
    782,179.94x = 1,079,423.64 × 510,421.70
  4. Step 4: Simplify right side
    782,179.94x = 550,961,249,348.99
  5. Step 5: Solve for x
    x = 550,961,249,348.99/782,179.94
  6. Step 6: Final answer
    x = 704,391.95

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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.