Home / 781,829.70-1,172,993.49-349,480.86

Finding the Fourth Proportional to 781,829.70, 1,172,993.49 and 349,480.86

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Solution

The fourth proportional to 781,829.70, 1,172,993.49 and 349,480.86 is: 524,332.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,829.70 : 1,172,993.49 = 349,480.86 : x
  2. Step 2: Convert to fraction form
    781,829.70/1,172,993.49 = 349,480.86/x
  3. Step 3: Cross multiply
    781,829.70x = 1,172,993.49 × 349,480.86
  4. Step 4: Simplify right side
    781,829.70x = 409,938,773,659.60
  5. Step 5: Solve for x
    x = 409,938,773,659.60/781,829.70
  6. Step 6: Final answer
    x = 524,332.57

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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.