Home / 782,277.17-1,079,357.47-442,745.42

Finding the Fourth Proportional to 782,277.17, 1,079,357.47 and 442,745.42

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Solution

The fourth proportional to 782,277.17, 1,079,357.47 and 442,745.42 is: 610,883.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,277.17 : 1,079,357.47 = 442,745.42 : x
  2. Step 2: Convert to fraction form
    782,277.17/1,079,357.47 = 442,745.42/x
  3. Step 3: Cross multiply
    782,277.17x = 1,079,357.47 × 442,745.42
  4. Step 4: Simplify right side
    782,277.17x = 477,880,569,881.64
  5. Step 5: Solve for x
    x = 477,880,569,881.64/782,277.17
  6. Step 6: Final answer
    x = 610,883.96

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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.