Home / 1,280,052.92-1,919,436.53-426,822.51

Finding the Fourth Proportional to 1,280,052.92, 1,919,436.53 and 426,822.51

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Solution

The fourth proportional to 1,280,052.92, 1,919,436.53 and 426,822.51 is: 640,019.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,052.92 : 1,919,436.53 = 426,822.51 : x
  2. Step 2: Convert to fraction form
    1,280,052.92/1,919,436.53 = 426,822.51/x
  3. Step 3: Cross multiply
    1,280,052.92x = 1,919,436.53 × 426,822.51
  4. Step 4: Simplify right side
    1,280,052.92x = 819,258,717,520.29
  5. Step 5: Solve for x
    x = 819,258,717,520.29/1,280,052.92
  6. Step 6: Final answer
    x = 640,019.41

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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.