Home / 438,733.52-605,419.08-247,720.40

Finding the Fourth Proportional to 438,733.52, 605,419.08 and 247,720.40

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Solution

The fourth proportional to 438,733.52, 605,419.08 and 247,720.40 is: 341,835.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,733.52 : 605,419.08 = 247,720.40 : x
  2. Step 2: Convert to fraction form
    438,733.52/605,419.08 = 247,720.40/x
  3. Step 3: Cross multiply
    438,733.52x = 605,419.08 × 247,720.40
  4. Step 4: Simplify right side
    438,733.52x = 149,974,656,665.23
  5. Step 5: Solve for x
    x = 149,974,656,665.23/438,733.52
  6. Step 6: Final answer
    x = 341,835.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.