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Finding the Fourth Proportional to 508,904.01, 702,288.15 and 279,476.08

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Solution

The fourth proportional to 508,904.01, 702,288.15 and 279,476.08 is: 385,677.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,904.01 : 702,288.15 = 279,476.08 : x
  2. Step 2: Convert to fraction form
    508,904.01/702,288.15 = 279,476.08/x
  3. Step 3: Cross multiply
    508,904.01x = 702,288.15 × 279,476.08
  4. Step 4: Simplify right side
    508,904.01x = 196,272,739,192.45
  5. Step 5: Solve for x
    x = 196,272,739,192.45/508,904.01
  6. Step 6: Final answer
    x = 385,677.33

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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.