Home / 1,231,750.46-1,699,569.05-687,802.55

Finding the Fourth Proportional to 1,231,750.46, 1,699,569.05 and 687,802.55

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Solution

The fourth proportional to 1,231,750.46, 1,699,569.05 and 687,802.55 is: 949,029.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,750.46 : 1,699,569.05 = 687,802.55 : x
  2. Step 2: Convert to fraction form
    1,231,750.46/1,699,569.05 = 687,802.55/x
  3. Step 3: Cross multiply
    1,231,750.46x = 1,699,569.05 × 687,802.55
  4. Step 4: Simplify right side
    1,231,750.46x = 1,168,967,920,927.60
  5. Step 5: Solve for x
    x = 1,168,967,920,927.60/1,231,750.46
  6. Step 6: Final answer
    x = 949,029.83

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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.