Home / 1,490,965.91-2,236,448.51-426,007.98

Finding the Fourth Proportional to 1,490,965.91, 2,236,448.51 and 426,007.98

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Solution

The fourth proportional to 1,490,965.91, 2,236,448.51 and 426,007.98 is: 639,011.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490,965.91 : 2,236,448.51 = 426,007.98 : x
  2. Step 2: Convert to fraction form
    1,490,965.91/2,236,448.51 = 426,007.98/x
  3. Step 3: Cross multiply
    1,490,965.91x = 2,236,448.51 × 426,007.98
  4. Step 4: Simplify right side
    1,490,965.91x = 952,744,912,119.11
  5. Step 5: Solve for x
    x = 952,744,912,119.11/1,490,965.91
  6. Step 6: Final answer
    x = 639,011.87

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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.