Home / 400,727.10-553,003.57-219,450.32

Finding the Fourth Proportional to 400,727.10, 553,003.57 and 219,450.32

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Solution

The fourth proportional to 400,727.10, 553,003.57 and 219,450.32 is: 302,841.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,727.10 : 553,003.57 = 219,450.32 : x
  2. Step 2: Convert to fraction form
    400,727.10/553,003.57 = 219,450.32/x
  3. Step 3: Cross multiply
    400,727.10x = 553,003.57 × 219,450.32
  4. Step 4: Simplify right side
    400,727.10x = 121,356,810,397.64
  5. Step 5: Solve for x
    x = 121,356,810,397.64/400,727.10
  6. Step 6: Final answer
    x = 302,841.54

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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.