Home / 484,186.95-667,904.94-290,543.22

Finding the Fourth Proportional to 484,186.95, 667,904.94 and 290,543.22

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Solution

The fourth proportional to 484,186.95, 667,904.94 and 290,543.22 is: 400,785.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,186.95 : 667,904.94 = 290,543.22 : x
  2. Step 2: Convert to fraction form
    484,186.95/667,904.94 = 290,543.22/x
  3. Step 3: Cross multiply
    484,186.95x = 667,904.94 × 290,543.22
  4. Step 4: Simplify right side
    484,186.95x = 194,055,251,921.51
  5. Step 5: Solve for x
    x = 194,055,251,921.51/484,186.95
  6. Step 6: Final answer
    x = 400,785.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.