Home / 791,665.40-1,187,048.18-311,633

Finding the Fourth Proportional to 791,665.40, 1,187,048.18 and 311,633

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Solution

The fourth proportional to 791,665.40, 1,187,048.18 and 311,633 is: 467,272.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,665.40 : 1,187,048.18 = 311,633 : x
  2. Step 2: Convert to fraction form
    791,665.40/1,187,048.18 = 311,633/x
  3. Step 3: Cross multiply
    791,665.40x = 1,187,048.18 × 311,633
  4. Step 4: Simplify right side
    791,665.40x = 369,923,385,477.94
  5. Step 5: Solve for x
    x = 369,923,385,477.94/791,665.40
  6. Step 6: Final answer
    x = 467,272.39

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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.