Home / 680,949.10-1,022,407.80-513,643.60

Finding the Fourth Proportional to 680,949.10, 1,022,407.80 and 513,643.60

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Solution

The fourth proportional to 680,949.10, 1,022,407.80 and 513,643.60 is: 771,207.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,949.10 : 1,022,407.80 = 513,643.60 : x
  2. Step 2: Convert to fraction form
    680,949.10/1,022,407.80 = 513,643.60/x
  3. Step 3: Cross multiply
    680,949.10x = 1,022,407.80 × 513,643.60
  4. Step 4: Simplify right side
    680,949.10x = 525,153,223,060.08
  5. Step 5: Solve for x
    x = 525,153,223,060.08/680,949.10
  6. Step 6: Final answer
    x = 771,207.75

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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.