Home / 805,219.50-1,111,216.95-442,658.64

Finding the Fourth Proportional to 805,219.50, 1,111,216.95 and 442,658.64

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Solution

The fourth proportional to 805,219.50, 1,111,216.95 and 442,658.64 is: 610,876.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,219.50 : 1,111,216.95 = 442,658.64 : x
  2. Step 2: Convert to fraction form
    805,219.50/1,111,216.95 = 442,658.64/x
  3. Step 3: Cross multiply
    805,219.50x = 1,111,216.95 × 442,658.64
  4. Step 4: Simplify right side
    805,219.50x = 491,889,783,831.95
  5. Step 5: Solve for x
    x = 491,889,783,831.95/805,219.50
  6. Step 6: Final answer
    x = 610,876.64

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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.