Home / 918,433.86-1,377,750.87-311,660.34

Finding the Fourth Proportional to 918,433.86, 1,377,750.87 and 311,660.34

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Solution

The fourth proportional to 918,433.86, 1,377,750.87 and 311,660.34 is: 467,524.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,433.86 : 1,377,750.87 = 311,660.34 : x
  2. Step 2: Convert to fraction form
    918,433.86/1,377,750.87 = 311,660.34/x
  3. Step 3: Cross multiply
    918,433.86x = 1,377,750.87 × 311,660.34
  4. Step 4: Simplify right side
    918,433.86x = 429,390,304,579.50
  5. Step 5: Solve for x
    x = 429,390,304,579.50/918,433.86
  6. Step 6: Final answer
    x = 467,524.47

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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.