Home / 918,434.86-1,377,752.37-311,661.34

Finding the Fourth Proportional to 918,434.86, 1,377,752.37 and 311,661.34

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Solution

The fourth proportional to 918,434.86, 1,377,752.37 and 311,661.34 is: 467,525.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,434.86 : 1,377,752.37 = 311,661.34 : x
  2. Step 2: Convert to fraction form
    918,434.86/1,377,752.37 = 311,661.34/x
  3. Step 3: Cross multiply
    918,434.86x = 1,377,752.37 × 311,661.34
  4. Step 4: Simplify right side
    918,434.86x = 429,392,149,822.38
  5. Step 5: Solve for x
    x = 429,392,149,822.38/918,434.86
  6. Step 6: Final answer
    x = 467,525.97

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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.