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Finding the Fourth Proportional to 400,880.38, 553,223.86 and 228,794.89

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Solution

The fourth proportional to 400,880.38, 553,223.86 and 228,794.89 is: 315,742.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,880.38 : 553,223.86 = 228,794.89 : x
  2. Step 2: Convert to fraction form
    400,880.38/553,223.86 = 228,794.89/x
  3. Step 3: Cross multiply
    400,880.38x = 553,223.86 × 228,794.89
  4. Step 4: Simplify right side
    400,880.38x = 126,574,788,283.98
  5. Step 5: Solve for x
    x = 126,574,788,283.98/400,880.38
  6. Step 6: Final answer
    x = 315,742.04

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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.