Home / 680,991.77-939,811.28-375,068.07

Finding the Fourth Proportional to 680,991.77, 939,811.28 and 375,068.07

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Solution

The fourth proportional to 680,991.77, 939,811.28 and 375,068.07 is: 517,617.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,991.77 : 939,811.28 = 375,068.07 : x
  2. Step 2: Convert to fraction form
    680,991.77/939,811.28 = 375,068.07/x
  3. Step 3: Cross multiply
    680,991.77x = 939,811.28 × 375,068.07
  4. Step 4: Simplify right side
    680,991.77x = 352,493,201,078.49
  5. Step 5: Solve for x
    x = 352,493,201,078.49/680,991.77
  6. Step 6: Final answer
    x = 517,617.42

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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.