Home / 447,821.06-671,946.64-279,298.13

Finding the Fourth Proportional to 447,821.06, 671,946.64 and 279,298.13

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Solution

The fourth proportional to 447,821.06, 671,946.64 and 279,298.13 is: 419,081.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,821.06 : 671,946.64 = 279,298.13 : x
  2. Step 2: Convert to fraction form
    447,821.06/671,946.64 = 279,298.13/x
  3. Step 3: Cross multiply
    447,821.06x = 671,946.64 × 279,298.13
  4. Step 4: Simplify right side
    447,821.06x = 187,673,435,953.81
  5. Step 5: Solve for x
    x = 187,673,435,953.81/447,821.06
  6. Step 6: Final answer
    x = 419,081.31

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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.