Home / 729,868.05-1,006,997.82-423,885.45

Finding the Fourth Proportional to 729,868.05, 1,006,997.82 and 423,885.45

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Solution

The fourth proportional to 729,868.05, 1,006,997.82 and 423,885.45 is: 584,834.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,868.05 : 1,006,997.82 = 423,885.45 : x
  2. Step 2: Convert to fraction form
    729,868.05/1,006,997.82 = 423,885.45/x
  3. Step 3: Cross multiply
    729,868.05x = 1,006,997.82 × 423,885.45
  4. Step 4: Simplify right side
    729,868.05x = 426,851,724,079.72
  5. Step 5: Solve for x
    x = 426,851,724,079.72/729,868.05
  6. Step 6: Final answer
    x = 584,834.10

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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.