Home / 1,273,780.59-1,909,096.23-642,349.95

Finding the Fourth Proportional to 1,273,780.59, 1,909,096.23 and 642,349.95

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Solution

The fourth proportional to 1,273,780.59, 1,909,096.23 and 642,349.95 is: 962,730.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,273,780.59 : 1,909,096.23 = 642,349.95 : x
  2. Step 2: Convert to fraction form
    1,273,780.59/1,909,096.23 = 642,349.95/x
  3. Step 3: Cross multiply
    1,273,780.59x = 1,909,096.23 × 642,349.95
  4. Step 4: Simplify right side
    1,273,780.59x = 1,226,307,867,885.69
  5. Step 5: Solve for x
    x = 1,226,307,867,885.69/1,273,780.59
  6. Step 6: Final answer
    x = 962,730.85

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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.