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Finding the Fourth Proportional to 403,725.70, 605,588.55 and 291,751.30

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Solution

The fourth proportional to 403,725.70, 605,588.55 and 291,751.30 is: 437,626.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,725.70 : 605,588.55 = 291,751.30 : x
  2. Step 2: Convert to fraction form
    403,725.70/605,588.55 = 291,751.30/x
  3. Step 3: Cross multiply
    403,725.70x = 605,588.55 × 291,751.30
  4. Step 4: Simplify right side
    403,725.70x = 176,681,246,727.62
  5. Step 5: Solve for x
    x = 176,681,246,727.62/403,725.70
  6. Step 6: Final answer
    x = 437,626.95

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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.