Home / 869,121.60-1,301,932.80-448,634.40

Finding the Fourth Proportional to 869,121.60, 1,301,932.80 and 448,634.40

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Solution

The fourth proportional to 869,121.60, 1,301,932.80 and 448,634.40 is: 672,048.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,121.60 : 1,301,932.80 = 448,634.40 : x
  2. Step 2: Convert to fraction form
    869,121.60/1,301,932.80 = 448,634.40/x
  3. Step 3: Cross multiply
    869,121.60x = 1,301,932.80 × 448,634.40
  4. Step 4: Simplify right side
    869,121.60x = 584,091,840,568.32
  5. Step 5: Solve for x
    x = 584,091,840,568.32/869,121.60
  6. Step 6: Final answer
    x = 672,048.47

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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.