Home / 864,003.80-1,296,005.70-609,642.20

Finding the Fourth Proportional to 864,003.80, 1,296,005.70 and 609,642.20

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Solution

The fourth proportional to 864,003.80, 1,296,005.70 and 609,642.20 is: 914,463.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,003.80 : 1,296,005.70 = 609,642.20 : x
  2. Step 2: Convert to fraction form
    864,003.80/1,296,005.70 = 609,642.20/x
  3. Step 3: Cross multiply
    864,003.80x = 1,296,005.70 × 609,642.20
  4. Step 4: Simplify right side
    864,003.80x = 790,099,766,160.54
  5. Step 5: Solve for x
    x = 790,099,766,160.54/864,003.80
  6. Step 6: Final answer
    x = 914,463.30

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1.5x scale

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.