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Finding the Fourth Proportional to 606,955.40, 910,983.90 and 307,644.20

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Solution

The fourth proportional to 606,955.40, 910,983.90 and 307,644.20 is: 461,745.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,955.40 : 910,983.90 = 307,644.20 : x
  2. Step 2: Convert to fraction form
    606,955.40/910,983.90 = 307,644.20/x
  3. Step 3: Cross multiply
    606,955.40x = 910,983.90 × 307,644.20
  4. Step 4: Simplify right side
    606,955.40x = 280,258,913,128.38
  5. Step 5: Solve for x
    x = 280,258,913,128.38/606,955.40
  6. Step 6: Final answer
    x = 461,745.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.