Home / 782,180.19-1,079,423.99-510,421.95

Finding the Fourth Proportional to 782,180.19, 1,079,423.99 and 510,421.95

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Solution

The fourth proportional to 782,180.19, 1,079,423.99 and 510,421.95 is: 704,392.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,180.19 : 1,079,423.99 = 510,421.95 : x
  2. Step 2: Convert to fraction form
    782,180.19/1,079,423.99 = 510,421.95/x
  3. Step 3: Cross multiply
    782,180.19x = 1,079,423.99 × 510,421.95
  4. Step 4: Simplify right side
    782,180.19x = 550,961,697,852.58
  5. Step 5: Solve for x
    x = 550,961,697,852.58/782,180.19
  6. Step 6: Final answer
    x = 704,392.29

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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.