Home / 1,260,289.70-1,891,663.35-629,915.30

Finding the Fourth Proportional to 1,260,289.70, 1,891,663.35 and 629,915.30

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Solution

The fourth proportional to 1,260,289.70, 1,891,663.35 and 629,915.30 is: 945,487.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,289.70 : 1,891,663.35 = 629,915.30 : x
  2. Step 2: Convert to fraction form
    1,260,289.70/1,891,663.35 = 629,915.30/x
  3. Step 3: Cross multiply
    1,260,289.70x = 1,891,663.35 × 629,915.30
  4. Step 4: Simplify right side
    1,260,289.70x = 1,191,587,686,614.26
  5. Step 5: Solve for x
    x = 1,191,587,686,614.26/1,260,289.70
  6. Step 6: Final answer
    x = 945,487.13

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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.