Home / 1,320,647.04-1,981,757.52-479,264.40

Finding the Fourth Proportional to 1,320,647.04, 1,981,757.52 and 479,264.40

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Solution

The fourth proportional to 1,320,647.04, 1,981,757.52 and 479,264.40 is: 719,182.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,647.04 : 1,981,757.52 = 479,264.40 : x
  2. Step 2: Convert to fraction form
    1,320,647.04/1,981,757.52 = 479,264.40/x
  3. Step 3: Cross multiply
    1,320,647.04x = 1,981,757.52 × 479,264.40
  4. Step 4: Simplify right side
    1,320,647.04x = 949,785,828,768.29
  5. Step 5: Solve for x
    x = 949,785,828,768.29/1,320,647.04
  6. Step 6: Final answer
    x = 719,182.19

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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.