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Finding the Fourth Proportional to 567,440.78, 783,123.39 and 423,951.71

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Solution

The fourth proportional to 567,440.78, 783,123.39 and 423,951.71 is: 585,094.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,440.78 : 783,123.39 = 423,951.71 : x
  2. Step 2: Convert to fraction form
    567,440.78/783,123.39 = 423,951.71/x
  3. Step 3: Cross multiply
    567,440.78x = 783,123.39 × 423,951.71
  4. Step 4: Simplify right side
    567,440.78x = 332,006,496,415.88
  5. Step 5: Solve for x
    x = 332,006,496,415.88/567,440.78
  6. Step 6: Final answer
    x = 585,094.54

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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.