Home / 1,029,487.20-1,420,777.36-570,745.65

Finding the Fourth Proportional to 1,029,487.20, 1,420,777.36 and 570,745.65

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Solution

The fourth proportional to 1,029,487.20, 1,420,777.36 and 570,745.65 is: 787,676.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,029,487.20 : 1,420,777.36 = 570,745.65 : x
  2. Step 2: Convert to fraction form
    1,029,487.20/1,420,777.36 = 570,745.65/x
  3. Step 3: Cross multiply
    1,029,487.20x = 1,420,777.36 × 570,745.65
  4. Step 4: Simplify right side
    1,029,487.20x = 810,902,497,838.48
  5. Step 5: Solve for x
    x = 810,902,497,838.48/1,029,487.20
  6. Step 6: Final answer
    x = 787,676.13

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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.