Home / 480,286.77-720,430.14-180,834.51

Finding the Fourth Proportional to 480,286.77, 720,430.14 and 180,834.51

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Solution

The fourth proportional to 480,286.77, 720,430.14 and 180,834.51 is: 271,251.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,286.77 : 720,430.14 = 180,834.51 : x
  2. Step 2: Convert to fraction form
    480,286.77/720,430.14 = 180,834.51/x
  3. Step 3: Cross multiply
    480,286.77x = 720,430.14 × 180,834.51
  4. Step 4: Simplify right side
    480,286.77x = 130,278,631,356.13
  5. Step 5: Solve for x
    x = 130,278,631,356.13/480,286.77
  6. Step 6: Final answer
    x = 271,251.76

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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.