Home / 3,640,689.05-5,459,288.63-1,720,001.39

Finding the Fourth Proportional to 3,640,689.05, 5,459,288.63 and 1,720,001.39

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Solution

The fourth proportional to 3,640,689.05, 5,459,288.63 and 1,720,001.39 is: 2,579,177.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,640,689.05 : 5,459,288.63 = 1,720,001.39 : x
  2. Step 2: Convert to fraction form
    3,640,689.05/5,459,288.63 = 1,720,001.39/x
  3. Step 3: Cross multiply
    3,640,689.05x = 5,459,288.63 × 1,720,001.39
  4. Step 4: Simplify right side
    3,640,689.05x = 9,389,983,996,114.75
  5. Step 5: Solve for x
    x = 9,389,983,996,114.75/3,640,689.05
  6. Step 6: Final answer
    x = 2,579,177.70

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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.