Home / 1,227,106.62-1,841,500.67-428,388.14

Finding the Fourth Proportional to 1,227,106.62, 1,841,500.67 and 428,388.14

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Solution

The fourth proportional to 1,227,106.62, 1,841,500.67 and 428,388.14 is: 642,875.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,227,106.62 : 1,841,500.67 = 428,388.14 : x
  2. Step 2: Convert to fraction form
    1,227,106.62/1,841,500.67 = 428,388.14/x
  3. Step 3: Cross multiply
    1,227,106.62x = 1,841,500.67 × 428,388.14
  4. Step 4: Simplify right side
    1,227,106.62x = 788,877,041,102.57
  5. Step 5: Solve for x
    x = 788,877,041,102.57/1,227,106.62
  6. Step 6: Final answer
    x = 642,875.71

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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.