Home / 1,432,526.66-2,148,556.39-421,412.12

Finding the Fourth Proportional to 1,432,526.66, 2,148,556.39 and 421,412.12

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Solution

The fourth proportional to 1,432,526.66, 2,148,556.39 and 421,412.12 is: 632,049.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,526.66 : 2,148,556.39 = 421,412.12 : x
  2. Step 2: Convert to fraction form
    1,432,526.66/2,148,556.39 = 421,412.12/x
  3. Step 3: Cross multiply
    1,432,526.66x = 2,148,556.39 × 421,412.12
  4. Step 4: Simplify right side
    1,432,526.66x = 905,427,699,510.22
  5. Step 5: Solve for x
    x = 905,427,699,510.22/1,432,526.66
  6. Step 6: Final answer
    x = 632,049.46

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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.