Home / 698,836.20-1,045,662.30-512,212.20

Finding the Fourth Proportional to 698,836.20, 1,045,662.30 and 512,212.20

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Solution

The fourth proportional to 698,836.20, 1,045,662.30 and 512,212.20 is: 766,418.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,836.20 : 1,045,662.30 = 512,212.20 : x
  2. Step 2: Convert to fraction form
    698,836.20/1,045,662.30 = 512,212.20/x
  3. Step 3: Cross multiply
    698,836.20x = 1,045,662.30 × 512,212.20
  4. Step 4: Simplify right side
    698,836.20x = 535,600,987,140.06
  5. Step 5: Solve for x
    x = 535,600,987,140.06/698,836.20
  6. Step 6: Final answer
    x = 766,418.49

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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.