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Finding the Fourth Proportional to 1,293,819.06, 1,938,241.24 and 723,470.30

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Solution

The fourth proportional to 1,293,819.06, 1,938,241.24 and 723,470.30 is: 1,083,814.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,293,819.06 : 1,938,241.24 = 723,470.30 : x
  2. Step 2: Convert to fraction form
    1,293,819.06/1,938,241.24 = 723,470.30/x
  3. Step 3: Cross multiply
    1,293,819.06x = 1,938,241.24 × 723,470.30
  4. Step 4: Simplify right side
    1,293,819.06x = 1,402,259,959,875.29
  5. Step 5: Solve for x
    x = 1,402,259,959,875.29/1,293,819.06
  6. Step 6: Final answer
    x = 1,083,814.58

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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.