Home / 1,418,556.60-2,127,834.90-421,284.60

Finding the Fourth Proportional to 1,418,556.60, 2,127,834.90 and 421,284.60

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Solution

The fourth proportional to 1,418,556.60, 2,127,834.90 and 421,284.60 is: 631,926.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,418,556.60 : 2,127,834.90 = 421,284.60 : x
  2. Step 2: Convert to fraction form
    1,418,556.60/2,127,834.90 = 421,284.60/x
  3. Step 3: Cross multiply
    1,418,556.60x = 2,127,834.90 × 421,284.60
  4. Step 4: Simplify right side
    1,418,556.60x = 896,424,074,712.54
  5. Step 5: Solve for x
    x = 896,424,074,712.54/1,418,556.60
  6. Step 6: Final answer
    x = 631,926.90

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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.