Home / 1,242,155.19-1,863,321.41-331,332.57

Finding the Fourth Proportional to 1,242,155.19, 1,863,321.41 and 331,332.57

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Solution

The fourth proportional to 1,242,155.19, 1,863,321.41 and 331,332.57 is: 497,022.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,155.19 : 1,863,321.41 = 331,332.57 : x
  2. Step 2: Convert to fraction form
    1,242,155.19/1,863,321.41 = 331,332.57/x
  3. Step 3: Cross multiply
    1,242,155.19x = 1,863,321.41 × 331,332.57
  4. Step 4: Simplify right side
    1,242,155.19x = 617,379,069,854.66
  5. Step 5: Solve for x
    x = 617,379,069,854.66/1,242,155.19
  6. Step 6: Final answer
    x = 497,022.49

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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.