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Finding the Fourth Proportional to 671,998.66, 927,357.74 and 370,192.66

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Solution

The fourth proportional to 671,998.66, 927,357.74 and 370,192.66 is: 510,865.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,998.66 : 927,357.74 = 370,192.66 : x
  2. Step 2: Convert to fraction form
    671,998.66/927,357.74 = 370,192.66/x
  3. Step 3: Cross multiply
    671,998.66x = 927,357.74 × 370,192.66
  4. Step 4: Simplify right side
    671,998.66x = 343,301,028,542.19
  5. Step 5: Solve for x
    x = 343,301,028,542.19/671,998.66
  6. Step 6: Final answer
    x = 510,865.64

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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.