Home / 1,225,886.50-1,691,018.91-766,203.30

Finding the Fourth Proportional to 1,225,886.50, 1,691,018.91 and 766,203.30

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Solution

The fourth proportional to 1,225,886.50, 1,691,018.91 and 766,203.30 is: 1,056,920.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,886.50 : 1,691,018.91 = 766,203.30 : x
  2. Step 2: Convert to fraction form
    1,225,886.50/1,691,018.91 = 766,203.30/x
  3. Step 3: Cross multiply
    1,225,886.50x = 1,691,018.91 × 766,203.30
  4. Step 4: Simplify right side
    1,225,886.50x = 1,295,664,269,204.40
  5. Step 5: Solve for x
    x = 1,295,664,269,204.40/1,225,886.50
  6. Step 6: Final answer
    x = 1,056,920.25

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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.