Home / 1,320,746.34-1,981,422.09-479,298.18

Finding the Fourth Proportional to 1,320,746.34, 1,981,422.09 and 479,298.18

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Solution

The fourth proportional to 1,320,746.34, 1,981,422.09 and 479,298.18 is: 719,057.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,746.34 : 1,981,422.09 = 479,298.18 : x
  2. Step 2: Convert to fraction form
    1,320,746.34/1,981,422.09 = 479,298.18/x
  3. Step 3: Cross multiply
    1,320,746.34x = 1,981,422.09 × 479,298.18
  4. Step 4: Simplify right side
    1,320,746.34x = 949,692,001,548.80
  5. Step 5: Solve for x
    x = 949,692,001,548.80/1,320,746.34
  6. Step 6: Final answer
    x = 719,057.08

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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.