Home / 680,534.40-1,020,956.52-207,256.68

Finding the Fourth Proportional to 680,534.40, 1,020,956.52 and 207,256.68

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Solution

The fourth proportional to 680,534.40, 1,020,956.52 and 207,256.68 is: 310,932.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,534.40 : 1,020,956.52 = 207,256.68 : x
  2. Step 2: Convert to fraction form
    680,534.40/1,020,956.52 = 207,256.68/x
  3. Step 3: Cross multiply
    680,534.40x = 1,020,956.52 × 207,256.68
  4. Step 4: Simplify right side
    680,534.40x = 211,600,058,759.55
  5. Step 5: Solve for x
    x = 211,600,058,759.55/680,534.40
  6. Step 6: Final answer
    x = 310,932.20

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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.