Home / 787,433.16-1,086,648.30-447,900.60

Finding the Fourth Proportional to 787,433.16, 1,086,648.30 and 447,900.60

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Solution

The fourth proportional to 787,433.16, 1,086,648.30 and 447,900.60 is: 618,097.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,433.16 : 1,086,648.30 = 447,900.60 : x
  2. Step 2: Convert to fraction form
    787,433.16/1,086,648.30 = 447,900.60/x
  3. Step 3: Cross multiply
    787,433.16x = 1,086,648.30 × 447,900.60
  4. Step 4: Simplify right side
    787,433.16x = 486,710,425,558.98
  5. Step 5: Solve for x
    x = 486,710,425,558.98/787,433.16
  6. Step 6: Final answer
    x = 618,097.45

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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.