Home / 1,108,988.43-1,664,225.70-389,332.27

Finding the Fourth Proportional to 1,108,988.43, 1,664,225.70 and 389,332.27

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Solution

The fourth proportional to 1,108,988.43, 1,664,225.70 and 389,332.27 is: 584,259.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,108,988.43 : 1,664,225.70 = 389,332.27 : x
  2. Step 2: Convert to fraction form
    1,108,988.43/1,664,225.70 = 389,332.27/x
  3. Step 3: Cross multiply
    1,108,988.43x = 1,664,225.70 × 389,332.27
  4. Step 4: Simplify right side
    1,108,988.43x = 647,936,769,573.34
  5. Step 5: Solve for x
    x = 647,936,769,573.34/1,108,988.43
  6. Step 6: Final answer
    x = 584,259.27

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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.