Home / 1,478,274.20-2,217,411.30-681,112.70

Finding the Fourth Proportional to 1,478,274.20, 2,217,411.30 and 681,112.70

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Solution

The fourth proportional to 1,478,274.20, 2,217,411.30 and 681,112.70 is: 1,021,669.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,478,274.20 : 2,217,411.30 = 681,112.70 : x
  2. Step 2: Convert to fraction form
    1,478,274.20/2,217,411.30 = 681,112.70/x
  3. Step 3: Cross multiply
    1,478,274.20x = 2,217,411.30 × 681,112.70
  4. Step 4: Simplify right side
    1,478,274.20x = 1,510,306,997,553.51
  5. Step 5: Solve for x
    x = 1,510,306,997,553.51/1,478,274.20
  6. Step 6: Final answer
    x = 1,021,669.05

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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.