Home / 2,138,478.32-3,207,721.60-519,240.32

Finding the Fourth Proportional to 2,138,478.32, 3,207,721.60 and 519,240.32

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Solution

The fourth proportional to 2,138,478.32, 3,207,721.60 and 519,240.32 is: 778,861.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,138,478.32 : 3,207,721.60 = 519,240.32 : x
  2. Step 2: Convert to fraction form
    2,138,478.32/3,207,721.60 = 519,240.32/x
  3. Step 3: Cross multiply
    2,138,478.32x = 3,207,721.60 × 519,240.32
  4. Step 4: Simplify right side
    2,138,478.32x = 1,665,578,390,054.91
  5. Step 5: Solve for x
    x = 1,665,578,390,054.91/2,138,478.32
  6. Step 6: Final answer
    x = 778,861.48

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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.