Home / 559,135.39-771,639.27-421,067.15

Finding the Fourth Proportional to 559,135.39, 771,639.27 and 421,067.15

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Solution

The fourth proportional to 559,135.39, 771,639.27 and 421,067.15 is: 581,097.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,135.39 : 771,639.27 = 421,067.15 : x
  2. Step 2: Convert to fraction form
    559,135.39/771,639.27 = 421,067.15/x
  3. Step 3: Cross multiply
    559,135.39x = 771,639.27 × 421,067.15
  4. Step 4: Simplify right side
    559,135.39x = 324,911,948,246.98
  5. Step 5: Solve for x
    x = 324,911,948,246.98/559,135.39
  6. Step 6: Final answer
    x = 581,097.09

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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.