Home / 1,230,798.84-1,698,587.76-687,040.56

Finding the Fourth Proportional to 1,230,798.84, 1,698,587.76 and 687,040.56

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Solution

The fourth proportional to 1,230,798.84, 1,698,587.76 and 687,040.56 is: 948,163.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,798.84 : 1,698,587.76 = 687,040.56 : x
  2. Step 2: Convert to fraction form
    1,230,798.84/1,698,587.76 = 687,040.56/x
  3. Step 3: Cross multiply
    1,230,798.84x = 1,698,587.76 × 687,040.56
  4. Step 4: Simplify right side
    1,230,798.84x = 1,166,998,685,839.55
  5. Step 5: Solve for x
    x = 1,166,998,685,839.55/1,230,798.84
  6. Step 6: Final answer
    x = 948,163.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.