Home / 2,118,972.40-3,178,458.60-521,514.70

Finding the Fourth Proportional to 2,118,972.40, 3,178,458.60 and 521,514.70

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Solution

The fourth proportional to 2,118,972.40, 3,178,458.60 and 521,514.70 is: 782,272.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,118,972.40 : 3,178,458.60 = 521,514.70 : x
  2. Step 2: Convert to fraction form
    2,118,972.40/3,178,458.60 = 521,514.70/x
  3. Step 3: Cross multiply
    2,118,972.40x = 3,178,458.60 × 521,514.70
  4. Step 4: Simplify right side
    2,118,972.40x = 1,657,612,883,241.42
  5. Step 5: Solve for x
    x = 1,657,612,883,241.42/2,118,972.40
  6. Step 6: Final answer
    x = 782,272.05

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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.