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Finding the Fourth Proportional to 702,242.12, 969,087.24 and 379,945.15

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Solution

The fourth proportional to 702,242.12, 969,087.24 and 379,945.15 is: 524,320.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,242.12 : 969,087.24 = 379,945.15 : x
  2. Step 2: Convert to fraction form
    702,242.12/969,087.24 = 379,945.15/x
  3. Step 3: Cross multiply
    702,242.12x = 969,087.24 × 379,945.15
  4. Step 4: Simplify right side
    702,242.12x = 368,199,994,342.17
  5. Step 5: Solve for x
    x = 368,199,994,342.17/702,242.12
  6. Step 6: Final answer
    x = 524,320.58

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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.