Home / 1,270,256.43-1,904,983.20-417,187.50

Finding the Fourth Proportional to 1,270,256.43, 1,904,983.20 and 417,187.50

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Solution

The fourth proportional to 1,270,256.43, 1,904,983.20 and 417,187.50 is: 625,649.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270,256.43 : 1,904,983.20 = 417,187.50 : x
  2. Step 2: Convert to fraction form
    1,270,256.43/1,904,983.20 = 417,187.50/x
  3. Step 3: Cross multiply
    1,270,256.43x = 1,904,983.20 × 417,187.50
  4. Step 4: Simplify right side
    1,270,256.43x = 794,735,178,750
  5. Step 5: Solve for x
    x = 794,735,178,750/1,270,256.43
  6. Step 6: Final answer
    x = 625,649.40

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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.