Home / 1,421,204.59-1,961,288-776,651.95

Finding the Fourth Proportional to 1,421,204.59, 1,961,288 and 776,651.95

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Solution

The fourth proportional to 1,421,204.59, 1,961,288 and 776,651.95 is: 1,071,793.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,204.59 : 1,961,288 = 776,651.95 : x
  2. Step 2: Convert to fraction form
    1,421,204.59/1,961,288 = 776,651.95/x
  3. Step 3: Cross multiply
    1,421,204.59x = 1,961,288 × 776,651.95
  4. Step 4: Simplify right side
    1,421,204.59x = 1,523,238,149,711.60
  5. Step 5: Solve for x
    x = 1,523,238,149,711.60/1,421,204.59
  6. Step 6: Final answer
    x = 1,071,793.72

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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.