Home / 447,908.13-671,329.80-312,238.95

Finding the Fourth Proportional to 447,908.13, 671,329.80 and 312,238.95

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Solution

The fourth proportional to 447,908.13, 671,329.80 and 312,238.95 is: 467,987.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,908.13 : 671,329.80 = 312,238.95 : x
  2. Step 2: Convert to fraction form
    447,908.13/671,329.80 = 312,238.95/x
  3. Step 3: Cross multiply
    447,908.13x = 671,329.80 × 312,238.95
  4. Step 4: Simplify right side
    447,908.13x = 209,615,311,855.71
  5. Step 5: Solve for x
    x = 209,615,311,855.71/447,908.13
  6. Step 6: Final answer
    x = 467,987.29

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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.