Home / 1,295,666.80-1,942,625.40-664,061.20

Finding the Fourth Proportional to 1,295,666.80, 1,942,625.40 and 664,061.20

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Solution

The fourth proportional to 1,295,666.80, 1,942,625.40 and 664,061.20 is: 995,643.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,295,666.80 : 1,942,625.40 = 664,061.20 : x
  2. Step 2: Convert to fraction form
    1,295,666.80/1,942,625.40 = 664,061.20/x
  3. Step 3: Cross multiply
    1,295,666.80x = 1,942,625.40 × 664,061.20
  4. Step 4: Simplify right side
    1,295,666.80x = 1,290,022,154,274.48
  5. Step 5: Solve for x
    x = 1,290,022,154,274.48/1,295,666.80
  6. Step 6: Final answer
    x = 995,643.44

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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.