Home / 1,484,129.40-2,227,230.90-643,284.60

Finding the Fourth Proportional to 1,484,129.40, 2,227,230.90 and 643,284.60

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Solution

The fourth proportional to 1,484,129.40, 2,227,230.90 and 643,284.60 is: 965,376.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,484,129.40 : 2,227,230.90 = 643,284.60 : x
  2. Step 2: Convert to fraction form
    1,484,129.40/2,227,230.90 = 643,284.60/x
  3. Step 3: Cross multiply
    1,484,129.40x = 2,227,230.90 × 643,284.60
  4. Step 4: Simplify right side
    1,484,129.40x = 1,432,743,338,614.14
  5. Step 5: Solve for x
    x = 1,432,743,338,614.14/1,484,129.40
  6. Step 6: Final answer
    x = 965,376.29

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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.