Home / 680,065.80-1,020,098.70-605,416.20

Finding the Fourth Proportional to 680,065.80, 1,020,098.70 and 605,416.20

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Solution

The fourth proportional to 680,065.80, 1,020,098.70 and 605,416.20 is: 908,124.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,065.80 : 1,020,098.70 = 605,416.20 : x
  2. Step 2: Convert to fraction form
    680,065.80/1,020,098.70 = 605,416.20/x
  3. Step 3: Cross multiply
    680,065.80x = 1,020,098.70 × 605,416.20
  4. Step 4: Simplify right side
    680,065.80x = 617,584,278,578.94
  5. Step 5: Solve for x
    x = 617,584,278,578.94/680,065.80
  6. Step 6: Final answer
    x = 908,124.30

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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.