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Finding the Fourth Proportional to 604,648.45, 834,759.02 and 400,974.34

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Solution

The fourth proportional to 604,648.45, 834,759.02 and 400,974.34 is: 553,572.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,648.45 : 834,759.02 = 400,974.34 : x
  2. Step 2: Convert to fraction form
    604,648.45/834,759.02 = 400,974.34/x
  3. Step 3: Cross multiply
    604,648.45x = 834,759.02 × 400,974.34
  4. Step 4: Simplify right side
    604,648.45x = 334,716,944,453.91
  5. Step 5: Solve for x
    x = 334,716,944,453.91/604,648.45
  6. Step 6: Final answer
    x = 553,572.82

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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.