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Finding the Fourth Proportional to 702,285.18, 969,150.87 and 379,995.90

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Solution

The fourth proportional to 702,285.18, 969,150.87 and 379,995.90 is: 524,392.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,285.18 : 969,150.87 = 379,995.90 : x
  2. Step 2: Convert to fraction form
    702,285.18/969,150.87 = 379,995.90/x
  3. Step 3: Cross multiply
    702,285.18x = 969,150.87 × 379,995.90
  4. Step 4: Simplify right side
    702,285.18x = 368,273,357,081.43
  5. Step 5: Solve for x
    x = 368,273,357,081.43/702,285.18
  6. Step 6: Final answer
    x = 524,392.89

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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.