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Finding the Fourth Proportional to 1,008,447.60, 1,512,671.40 and 1,001,449.20

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Solution

The fourth proportional to 1,008,447.60, 1,512,671.40 and 1,001,449.20 is: 1,502,173.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,447.60 : 1,512,671.40 = 1,001,449.20 : x
  2. Step 2: Convert to fraction form
    1,008,447.60/1,512,671.40 = 1,001,449.20/x
  3. Step 3: Cross multiply
    1,008,447.60x = 1,512,671.40 × 1,001,449.20
  4. Step 4: Simplify right side
    1,008,447.60x = 1,514,863,563,392.88
  5. Step 5: Solve for x
    x = 1,514,863,563,392.88/1,008,447.60
  6. Step 6: Final answer
    x = 1,502,173.80

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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.