Home / 638,448.50-955,307.18-511,704.33

Finding the Fourth Proportional to 638,448.50, 955,307.18 and 511,704.33

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Solution

The fourth proportional to 638,448.50, 955,307.18 and 511,704.33 is: 765,660.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,448.50 : 955,307.18 = 511,704.33 : x
  2. Step 2: Convert to fraction form
    638,448.50/955,307.18 = 511,704.33/x
  3. Step 3: Cross multiply
    638,448.50x = 955,307.18 × 511,704.33
  4. Step 4: Simplify right side
    638,448.50x = 488,834,817,927.57
  5. Step 5: Solve for x
    x = 488,834,817,927.57/638,448.50
  6. Step 6: Final answer
    x = 765,660.53

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1.5x scale

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.