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Finding the Fourth Proportional to 419,929.32, 579,592.80 and 247,783.32

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Solution

The fourth proportional to 419,929.32, 579,592.80 and 247,783.32 is: 341,994.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,929.32 : 579,592.80 = 247,783.32 : x
  2. Step 2: Convert to fraction form
    419,929.32/579,592.80 = 247,783.32/x
  3. Step 3: Cross multiply
    419,929.32x = 579,592.80 × 247,783.32
  4. Step 4: Simplify right side
    419,929.32x = 143,613,428,232.10
  5. Step 5: Solve for x
    x = 143,613,428,232.10/419,929.32
  6. Step 6: Final answer
    x = 341,994.29

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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.