Home / 787,187.56-1,086,305.22-447,648.04

Finding the Fourth Proportional to 787,187.56, 1,086,305.22 and 447,648.04

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Solution

The fourth proportional to 787,187.56, 1,086,305.22 and 447,648.04 is: 617,746.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,187.56 : 1,086,305.22 = 447,648.04 : x
  2. Step 2: Convert to fraction form
    787,187.56/1,086,305.22 = 447,648.04/x
  3. Step 3: Cross multiply
    787,187.56x = 1,086,305.22 × 447,648.04
  4. Step 4: Simplify right side
    787,187.56x = 486,282,402,574.77
  5. Step 5: Solve for x
    x = 486,282,402,574.77/787,187.56
  6. Step 6: Final answer
    x = 617,746.55

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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.