Home / 791,404.83-1,187,465.37-311,500.49

Finding the Fourth Proportional to 791,404.83, 1,187,465.37 and 311,500.49

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Solution

The fourth proportional to 791,404.83, 1,187,465.37 and 311,500.49 is: 467,391.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,404.83 : 1,187,465.37 = 311,500.49 : x
  2. Step 2: Convert to fraction form
    791,404.83/1,187,465.37 = 311,500.49/x
  3. Step 3: Cross multiply
    791,404.83x = 1,187,465.37 × 311,500.49
  4. Step 4: Simplify right side
    791,404.83x = 369,896,038,675.70
  5. Step 5: Solve for x
    x = 369,896,038,675.70/791,404.83
  6. Step 6: Final answer
    x = 467,391.69

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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.