Home / 1,109,273.65-1,664,094.43-389,428.53

Finding the Fourth Proportional to 1,109,273.65, 1,664,094.43 and 389,428.53

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Solution

The fourth proportional to 1,109,273.65, 1,664,094.43 and 389,428.53 is: 584,207.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,273.65 : 1,664,094.43 = 389,428.53 : x
  2. Step 2: Convert to fraction form
    1,109,273.65/1,664,094.43 = 389,428.53/x
  3. Step 3: Cross multiply
    1,109,273.65x = 1,664,094.43 × 389,428.53
  4. Step 4: Simplify right side
    1,109,273.65x = 648,045,839,711.98
  5. Step 5: Solve for x
    x = 648,045,839,711.98/1,109,273.65
  6. Step 6: Final answer
    x = 584,207.37

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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.