Home / 787,050.72-1,086,124.92-447,518.94

Finding the Fourth Proportional to 787,050.72, 1,086,124.92 and 447,518.94

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Solution

The fourth proportional to 787,050.72, 1,086,124.92 and 447,518.94 is: 617,573.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,050.72 : 1,086,124.92 = 447,518.94 : x
  2. Step 2: Convert to fraction form
    787,050.72/1,086,124.92 = 447,518.94/x
  3. Step 3: Cross multiply
    787,050.72x = 1,086,124.92 × 447,518.94
  4. Step 4: Simplify right side
    787,050.72x = 486,061,472,905.99
  5. Step 5: Solve for x
    x = 486,061,472,905.99/787,050.72
  6. Step 6: Final answer
    x = 617,573.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.