Home / 787,431.66-1,086,646.23-447,899.10

Finding the Fourth Proportional to 787,431.66, 1,086,646.23 and 447,899.10

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Solution

The fourth proportional to 787,431.66, 1,086,646.23 and 447,899.10 is: 618,095.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,431.66 : 1,086,646.23 = 447,899.10 : x
  2. Step 2: Convert to fraction form
    787,431.66/1,086,646.23 = 447,899.10/x
  3. Step 3: Cross multiply
    787,431.66x = 1,086,646.23 × 447,899.10
  4. Step 4: Simplify right side
    787,431.66x = 486,707,868,435.39
  5. Step 5: Solve for x
    x = 486,707,868,435.39/787,431.66
  6. Step 6: Final answer
    x = 618,095.38

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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.