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Finding the Fourth Proportional to 508,837.04, 702,207.78 and 279,416.96

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Solution

The fourth proportional to 508,837.04, 702,207.78 and 279,416.96 is: 385,602.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,837.04 : 702,207.78 = 279,416.96 : x
  2. Step 2: Convert to fraction form
    508,837.04/702,207.78 = 279,416.96/x
  3. Step 3: Cross multiply
    508,837.04x = 702,207.78 × 279,416.96
  4. Step 4: Simplify right side
    508,837.04x = 196,208,763,175.95
  5. Step 5: Solve for x
    x = 196,208,763,175.95/508,837.04
  6. Step 6: Final answer
    x = 385,602.36

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1.5x scale

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.