Home / 886,618.82-1,223,464.60-499,417.32

Finding the Fourth Proportional to 886,618.82, 1,223,464.60 and 499,417.32

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Solution

The fourth proportional to 886,618.82, 1,223,464.60 and 499,417.32 is: 689,156.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,618.82 : 1,223,464.60 = 499,417.32 : x
  2. Step 2: Convert to fraction form
    886,618.82/1,223,464.60 = 499,417.32/x
  3. Step 3: Cross multiply
    886,618.82x = 1,223,464.60 × 499,417.32
  4. Step 4: Simplify right side
    886,618.82x = 611,019,411,646.87
  5. Step 5: Solve for x
    x = 611,019,411,646.87/886,618.82
  6. Step 6: Final answer
    x = 689,156.83

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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.