Home / 749,986.20-1,121,698.80-670,598.10

Finding the Fourth Proportional to 749,986.20, 1,121,698.80 and 670,598.10

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Solution

The fourth proportional to 749,986.20, 1,121,698.80 and 670,598.10 is: 1,002,963.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,986.20 : 1,121,698.80 = 670,598.10 : x
  2. Step 2: Convert to fraction form
    749,986.20/1,121,698.80 = 670,598.10/x
  3. Step 3: Cross multiply
    749,986.20x = 1,121,698.80 × 670,598.10
  4. Step 4: Simplify right side
    749,986.20x = 752,209,084,052.28
  5. Step 5: Solve for x
    x = 752,209,084,052.28/749,986.20
  6. Step 6: Final answer
    x = 1,002,963.90

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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.