Home / 749,991.20-1,121,706.30-670,603.10

Finding the Fourth Proportional to 749,991.20, 1,121,706.30 and 670,603.10

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Solution

The fourth proportional to 749,991.20, 1,121,706.30 and 670,603.10 is: 1,002,971.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,991.20 : 1,121,706.30 = 670,603.10 : x
  2. Step 2: Convert to fraction form
    749,991.20/1,121,706.30 = 670,603.10/x
  3. Step 3: Cross multiply
    749,991.20x = 1,121,706.30 × 670,603.10
  4. Step 4: Simplify right side
    749,991.20x = 752,219,722,069.53
  5. Step 5: Solve for x
    x = 752,219,722,069.53/749,991.20
  6. Step 6: Final answer
    x = 1,002,971.40

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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.