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Finding the Fourth Proportional to 1,314,447.90, 1,972,449.45 and 958,566.30

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Solution

The fourth proportional to 1,314,447.90, 1,972,449.45 and 958,566.30 is: 1,438,416.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,314,447.90 : 1,972,449.45 = 958,566.30 : x
  2. Step 2: Convert to fraction form
    1,314,447.90/1,972,449.45 = 958,566.30/x
  3. Step 3: Cross multiply
    1,314,447.90x = 1,972,449.45 × 958,566.30
  4. Step 4: Simplify right side
    1,314,447.90x = 1,890,723,571,223.54
  5. Step 5: Solve for x
    x = 1,890,723,571,223.54/1,314,447.90
  6. Step 6: Final answer
    x = 1,438,416.52

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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.