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Finding the Fourth Proportional to 807,163.80, 1,210,745.70 and 452,869.80

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Solution

The fourth proportional to 807,163.80, 1,210,745.70 and 452,869.80 is: 679,304.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,163.80 : 1,210,745.70 = 452,869.80 : x
  2. Step 2: Convert to fraction form
    807,163.80/1,210,745.70 = 452,869.80/x
  3. Step 3: Cross multiply
    807,163.80x = 1,210,745.70 × 452,869.80
  4. Step 4: Simplify right side
    807,163.80x = 548,310,163,009.86
  5. Step 5: Solve for x
    x = 548,310,163,009.86/807,163.80
  6. Step 6: Final answer
    x = 679,304.70

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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.