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Finding the Fourth Proportional to 607,716.12, 910,952.04 and 307,640.28

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Solution

The fourth proportional to 607,716.12, 910,952.04 and 307,640.28 is: 461,145.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,716.12 : 910,952.04 = 307,640.28 : x
  2. Step 2: Convert to fraction form
    607,716.12/910,952.04 = 307,640.28/x
  3. Step 3: Cross multiply
    607,716.12x = 910,952.04 × 307,640.28
  4. Step 4: Simplify right side
    607,716.12x = 280,245,540,652.17
  5. Step 5: Solve for x
    x = 280,245,540,652.17/607,716.12
  6. Step 6: Final answer
    x = 461,145.48

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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.