Home / 805,000.70-1,207,718.82-272,521.77

Finding the Fourth Proportional to 805,000.70, 1,207,718.82 and 272,521.77

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Solution

The fourth proportional to 805,000.70, 1,207,718.82 and 272,521.77 is: 408,856.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,000.70 : 1,207,718.82 = 272,521.77 : x
  2. Step 2: Convert to fraction form
    805,000.70/1,207,718.82 = 272,521.77/x
  3. Step 3: Cross multiply
    805,000.70x = 1,207,718.82 × 272,521.77
  4. Step 4: Simplify right side
    805,000.70x = 329,129,670,488.71
  5. Step 5: Solve for x
    x = 329,129,670,488.71/805,000.70
  6. Step 6: Final answer
    x = 408,856.38

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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.