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Finding the Fourth Proportional to 651,434.20, 976,373.70 and 335,728.60

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Solution

The fourth proportional to 651,434.20, 976,373.70 and 335,728.60 is: 503,192.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,434.20 : 976,373.70 = 335,728.60 : x
  2. Step 2: Convert to fraction form
    651,434.20/976,373.70 = 335,728.60/x
  3. Step 3: Cross multiply
    651,434.20x = 976,373.70 × 335,728.60
  4. Step 4: Simplify right side
    651,434.20x = 327,796,575,377.82
  5. Step 5: Solve for x
    x = 327,796,575,377.82/651,434.20
  6. Step 6: Final answer
    x = 503,192.15

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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.