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Finding the Fourth Proportional to 551,434.38, 760,889.96 and 344,678.30

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Solution

The fourth proportional to 551,434.38, 760,889.96 and 344,678.30 is: 475,600.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,434.38 : 760,889.96 = 344,678.30 : x
  2. Step 2: Convert to fraction form
    551,434.38/760,889.96 = 344,678.30/x
  3. Step 3: Cross multiply
    551,434.38x = 760,889.96 × 344,678.30
  4. Step 4: Simplify right side
    551,434.38x = 262,262,258,078.70
  5. Step 5: Solve for x
    x = 262,262,258,078.70/551,434.38
  6. Step 6: Final answer
    x = 475,600.12

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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.