Home / 783,901.20-1,175,560.20-310,488.60

Finding the Fourth Proportional to 783,901.20, 1,175,560.20 and 310,488.60

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Solution

The fourth proportional to 783,901.20, 1,175,560.20 and 310,488.60 is: 465,617.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,901.20 : 1,175,560.20 = 310,488.60 : x
  2. Step 2: Convert to fraction form
    783,901.20/1,175,560.20 = 310,488.60/x
  3. Step 3: Cross multiply
    783,901.20x = 1,175,560.20 × 310,488.60
  4. Step 4: Simplify right side
    783,901.20x = 364,998,040,713.72
  5. Step 5: Solve for x
    x = 364,998,040,713.72/783,901.20
  6. Step 6: Final answer
    x = 465,617.40

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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.