Home / 787,053.85-1,086,129.29-447,522.13

Finding the Fourth Proportional to 787,053.85, 1,086,129.29 and 447,522.13

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Solution

The fourth proportional to 787,053.85, 1,086,129.29 and 447,522.13 is: 617,577.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,053.85 : 1,086,129.29 = 447,522.13 : x
  2. Step 2: Convert to fraction form
    787,053.85/1,086,129.29 = 447,522.13/x
  3. Step 3: Cross multiply
    787,053.85x = 1,086,129.29 × 447,522.13
  4. Step 4: Simplify right side
    787,053.85x = 486,066,893,316.19
  5. Step 5: Solve for x
    x = 486,066,893,316.19/787,053.85
  6. Step 6: Final answer
    x = 617,577.68

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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.