Home / 787,051.47-1,086,125.96-447,519.69

Finding the Fourth Proportional to 787,051.47, 1,086,125.96 and 447,519.69

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Solution

The fourth proportional to 787,051.47, 1,086,125.96 and 447,519.69 is: 617,574.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,051.47 : 1,086,125.96 = 447,519.69 : x
  2. Step 2: Convert to fraction form
    787,051.47/1,086,125.96 = 447,519.69/x
  3. Step 3: Cross multiply
    787,051.47x = 1,086,125.96 × 447,519.69
  4. Step 4: Simplify right side
    787,051.47x = 486,062,750,682.55
  5. Step 5: Solve for x
    x = 486,062,750,682.55/787,051.47
  6. Step 6: Final answer
    x = 617,574.29

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Double scale
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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.