Home / 680,632.10-1,021,932.30-513,326.60

Finding the Fourth Proportional to 680,632.10, 1,021,932.30 and 513,326.60

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Solution

The fourth proportional to 680,632.10, 1,021,932.30 and 513,326.60 is: 770,732.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,632.10 : 1,021,932.30 = 513,326.60 : x
  2. Step 2: Convert to fraction form
    680,632.10/1,021,932.30 = 513,326.60/x
  3. Step 3: Cross multiply
    680,632.10x = 1,021,932.30 × 513,326.60
  4. Step 4: Simplify right side
    680,632.10x = 524,585,032,989.18
  5. Step 5: Solve for x
    x = 524,585,032,989.18/680,632.10
  6. Step 6: Final answer
    x = 770,732.14

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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.