Home / 1,280,053.17-1,919,436.91-426,822.77

Finding the Fourth Proportional to 1,280,053.17, 1,919,436.91 and 426,822.77

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Solution

The fourth proportional to 1,280,053.17, 1,919,436.91 and 426,822.77 is: 640,019.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,053.17 : 1,919,436.91 = 426,822.77 : x
  2. Step 2: Convert to fraction form
    1,280,053.17/1,919,436.91 = 426,822.77/x
  3. Step 3: Cross multiply
    1,280,053.17x = 1,919,436.91 × 426,822.77
  4. Step 4: Simplify right side
    1,280,053.17x = 819,259,367,035.14
  5. Step 5: Solve for x
    x = 819,259,367,035.14/1,280,053.17
  6. Step 6: Final answer
    x = 640,019.79

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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.