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Finding the Fourth Proportional to 635,373.90, 876,758.85 and 348,887.70

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Solution

The fourth proportional to 635,373.90, 876,758.85 and 348,887.70 is: 481,433.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,373.90 : 876,758.85 = 348,887.70 : x
  2. Step 2: Convert to fraction form
    635,373.90/876,758.85 = 348,887.70/x
  3. Step 3: Cross multiply
    635,373.90x = 876,758.85 × 348,887.70
  4. Step 4: Simplify right side
    635,373.90x = 305,890,378,631.15
  5. Step 5: Solve for x
    x = 305,890,378,631.15/635,373.90
  6. Step 6: Final answer
    x = 481,433.65

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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.