Home / 1,240,306.20-1,858,688.10-706,699.80

Finding the Fourth Proportional to 1,240,306.20, 1,858,688.10 and 706,699.80

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Solution

The fourth proportional to 1,240,306.20, 1,858,688.10 and 706,699.80 is: 1,059,040.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,306.20 : 1,858,688.10 = 706,699.80 : x
  2. Step 2: Convert to fraction form
    1,240,306.20/1,858,688.10 = 706,699.80/x
  3. Step 3: Cross multiply
    1,240,306.20x = 1,858,688.10 × 706,699.80
  4. Step 4: Simplify right side
    1,240,306.20x = 1,313,534,508,532.38
  5. Step 5: Solve for x
    x = 1,313,534,508,532.38/1,240,306.20
  6. Step 6: Final answer
    x = 1,059,040.51

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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.