Home / 787,066.72-1,086,147.06-447,535

Finding the Fourth Proportional to 787,066.72, 1,086,147.06 and 447,535

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Solution

The fourth proportional to 787,066.72, 1,086,147.06 and 447,535 is: 617,595.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,066.72 : 1,086,147.06 = 447,535 : x
  2. Step 2: Convert to fraction form
    787,066.72/1,086,147.06 = 447,535/x
  3. Step 3: Cross multiply
    787,066.72x = 1,086,147.06 × 447,535
  4. Step 4: Simplify right side
    787,066.72x = 486,088,824,497.10
  5. Step 5: Solve for x
    x = 486,088,824,497.10/787,066.72
  6. Step 6: Final answer
    x = 617,595.45

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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.