Home / 773,777.80-1,160,666.70-212,812.30

Finding the Fourth Proportional to 773,777.80, 1,160,666.70 and 212,812.30

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Solution

The fourth proportional to 773,777.80, 1,160,666.70 and 212,812.30 is: 319,218.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    773,777.80 : 1,160,666.70 = 212,812.30 : x
  2. Step 2: Convert to fraction form
    773,777.80/1,160,666.70 = 212,812.30/x
  3. Step 3: Cross multiply
    773,777.80x = 1,160,666.70 × 212,812.30
  4. Step 4: Simplify right side
    773,777.80x = 247,004,149,960.41
  5. Step 5: Solve for x
    x = 247,004,149,960.41/773,777.80
  6. Step 6: Final answer
    x = 319,218.45

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Similar ratio
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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.