Home / 4,270,979.87-6,407,410.89-1,238,472.35

Finding the Fourth Proportional to 4,270,979.87, 6,407,410.89 and 1,238,472.35

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Solution

The fourth proportional to 4,270,979.87, 6,407,410.89 and 1,238,472.35 is: 1,857,981.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,270,979.87 : 6,407,410.89 = 1,238,472.35 : x
  2. Step 2: Convert to fraction form
    4,270,979.87/6,407,410.89 = 1,238,472.35/x
  3. Step 3: Cross multiply
    4,270,979.87x = 6,407,410.89 × 1,238,472.35
  4. Step 4: Simplify right side
    4,270,979.87x = 7,935,401,218,988.90
  5. Step 5: Solve for x
    x = 7,935,401,218,988.90/4,270,979.87
  6. Step 6: Final answer
    x = 1,857,981.41

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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.