Home / 852,065.40-1,277,612.10-319,603.80

Finding the Fourth Proportional to 852,065.40, 1,277,612.10 and 319,603.80

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Solution

The fourth proportional to 852,065.40, 1,277,612.10 and 319,603.80 is: 479,223.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,065.40 : 1,277,612.10 = 319,603.80 : x
  2. Step 2: Convert to fraction form
    852,065.40/1,277,612.10 = 319,603.80/x
  3. Step 3: Cross multiply
    852,065.40x = 1,277,612.10 × 319,603.80
  4. Step 4: Simplify right side
    852,065.40x = 408,329,682,085.98
  5. Step 5: Solve for x
    x = 408,329,682,085.98/852,065.40
  6. Step 6: Final answer
    x = 479,223.40

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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.