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Finding the Fourth Proportional to 666,292.66, 919,480.98 and 360,369.34

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Solution

The fourth proportional to 666,292.66, 919,480.98 and 360,369.34 is: 497,308.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,292.66 : 919,480.98 = 360,369.34 : x
  2. Step 2: Convert to fraction form
    666,292.66/919,480.98 = 360,369.34/x
  3. Step 3: Cross multiply
    666,292.66x = 919,480.98 × 360,369.34
  4. Step 4: Simplify right side
    666,292.66x = 331,352,753,905.15
  5. Step 5: Solve for x
    x = 331,352,753,905.15/666,292.66
  6. Step 6: Final answer
    x = 497,308.13

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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.