Home / 1,140,767.80-1,711,240.80-509,745.40

Finding the Fourth Proportional to 1,140,767.80, 1,711,240.80 and 509,745.40

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Solution

The fourth proportional to 1,140,767.80, 1,711,240.80 and 509,745.40 is: 764,657.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,140,767.80 : 1,711,240.80 = 509,745.40 : x
  2. Step 2: Convert to fraction form
    1,140,767.80/1,711,240.80 = 509,745.40/x
  3. Step 3: Cross multiply
    1,140,767.80x = 1,711,240.80 × 509,745.40
  4. Step 4: Simplify right side
    1,140,767.80x = 872,297,126,092.32
  5. Step 5: Solve for x
    x = 872,297,126,092.32/1,140,767.80
  6. Step 6: Final answer
    x = 764,657.91

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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.