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Finding the Fourth Proportional to 1,715,241.66, 2,366,978.58 and 940,861.50

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Solution

The fourth proportional to 1,715,241.66, 2,366,978.58 and 940,861.50 is: 1,298,358.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,715,241.66 : 2,366,978.58 = 940,861.50 : x
  2. Step 2: Convert to fraction form
    1,715,241.66/2,366,978.58 = 940,861.50/x
  3. Step 3: Cross multiply
    1,715,241.66x = 2,366,978.58 × 940,861.50
  4. Step 4: Simplify right side
    1,715,241.66x = 2,226,999,017,246.67
  5. Step 5: Solve for x
    x = 2,226,999,017,246.67/1,715,241.66
  6. Step 6: Final answer
    x = 1,298,358.75

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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.