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Finding the Fourth Proportional to 501,546.70, 692,134.44 and 286,691.40

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Solution

The fourth proportional to 501,546.70, 692,134.44 and 286,691.40 is: 395,634.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,546.70 : 692,134.44 = 286,691.40 : x
  2. Step 2: Convert to fraction form
    501,546.70/692,134.44 = 286,691.40/x
  3. Step 3: Cross multiply
    501,546.70x = 692,134.44 × 286,691.40
  4. Step 4: Simplify right side
    501,546.70x = 198,428,991,591.82
  5. Step 5: Solve for x
    x = 198,428,991,591.82/501,546.70
  6. Step 6: Final answer
    x = 395,634.13

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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.