Home / 680,447.16-1,020,818.39-207,120.24

Finding the Fourth Proportional to 680,447.16, 1,020,818.39 and 207,120.24

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Solution

The fourth proportional to 680,447.16, 1,020,818.39 and 207,120.24 is: 310,725.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,447.16 : 1,020,818.39 = 207,120.24 : x
  2. Step 2: Convert to fraction form
    680,447.16/1,020,818.39 = 207,120.24/x
  3. Step 3: Cross multiply
    680,447.16x = 1,020,818.39 × 207,120.24
  4. Step 4: Simplify right side
    680,447.16x = 211,432,148,897.61
  5. Step 5: Solve for x
    x = 211,432,148,897.61/680,447.16
  6. Step 6: Final answer
    x = 310,725.30

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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.