Home / 680,041.75-1,020,025.72-206,690.21

Finding the Fourth Proportional to 680,041.75, 1,020,025.72 and 206,690.21

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Solution

The fourth proportional to 680,041.75, 1,020,025.72 and 206,690.21 is: 310,024.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,041.75 : 1,020,025.72 = 206,690.21 : x
  2. Step 2: Convert to fraction form
    680,041.75/1,020,025.72 = 206,690.21/x
  3. Step 3: Cross multiply
    680,041.75x = 1,020,025.72 × 206,690.21
  4. Step 4: Simplify right side
    680,041.75x = 210,829,330,272.20
  5. Step 5: Solve for x
    x = 210,829,330,272.20/680,041.75
  6. Step 6: Final answer
    x = 310,024.10

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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.