Home / 855,287.28-1,180,428.98-487,765.22

Finding the Fourth Proportional to 855,287.28, 1,180,428.98 and 487,765.22

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Solution

The fourth proportional to 855,287.28, 1,180,428.98 and 487,765.22 is: 673,191.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,287.28 : 1,180,428.98 = 487,765.22 : x
  2. Step 2: Convert to fraction form
    855,287.28/1,180,428.98 = 487,765.22/x
  3. Step 3: Cross multiply
    855,287.28x = 1,180,428.98 × 487,765.22
  4. Step 4: Simplify right side
    855,287.28x = 575,772,192,783.11
  5. Step 5: Solve for x
    x = 575,772,192,783.11/855,287.28
  6. Step 6: Final answer
    x = 673,191.58

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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.