Home / 680,938.10-1,021,407.15-207,622.70

Finding the Fourth Proportional to 680,938.10, 1,021,407.15 and 207,622.70

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Solution

The fourth proportional to 680,938.10, 1,021,407.15 and 207,622.70 is: 311,434.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,938.10 : 1,021,407.15 = 207,622.70 : x
  2. Step 2: Convert to fraction form
    680,938.10/1,021,407.15 = 207,622.70/x
  3. Step 3: Cross multiply
    680,938.10x = 1,021,407.15 × 207,622.70
  4. Step 4: Simplify right side
    680,938.10x = 212,067,310,282.31
  5. Step 5: Solve for x
    x = 212,067,310,282.31/680,938.10
  6. Step 6: Final answer
    x = 311,434.05

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1.5x scale

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.