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Finding the Fourth Proportional to 677,433.38, 934,870.91 and 371,490.34

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Solution

The fourth proportional to 677,433.38, 934,870.91 and 371,490.34 is: 512,663.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,433.38 : 934,870.91 = 371,490.34 : x
  2. Step 2: Convert to fraction form
    677,433.38/934,870.91 = 371,490.34/x
  3. Step 3: Cross multiply
    677,433.38x = 934,870.91 × 371,490.34
  4. Step 4: Simplify right side
    677,433.38x = 347,295,512,212.01
  5. Step 5: Solve for x
    x = 347,295,512,212.01/677,433.38
  6. Step 6: Final answer
    x = 512,663.71

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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.