Home / 808,003.80-1,212,005.70-771,262.20

Finding the Fourth Proportional to 808,003.80, 1,212,005.70 and 771,262.20

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Solution

The fourth proportional to 808,003.80, 1,212,005.70 and 771,262.20 is: 1,156,893.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,003.80 : 1,212,005.70 = 771,262.20 : x
  2. Step 2: Convert to fraction form
    808,003.80/1,212,005.70 = 771,262.20/x
  3. Step 3: Cross multiply
    808,003.80x = 1,212,005.70 × 771,262.20
  4. Step 4: Simplify right side
    808,003.80x = 934,774,182,594.54
  5. Step 5: Solve for x
    x = 934,774,182,594.54/808,003.80
  6. Step 6: Final answer
    x = 1,156,893.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.