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Finding the Fourth Proportional to 970,397.77, 1,455,396.18 and 260,257

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Solution

The fourth proportional to 970,397.77, 1,455,396.18 and 260,257 is: 390,331.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,397.77 : 1,455,396.18 = 260,257 : x
  2. Step 2: Convert to fraction form
    970,397.77/1,455,396.18 = 260,257/x
  3. Step 3: Cross multiply
    970,397.77x = 1,455,396.18 × 260,257
  4. Step 4: Simplify right side
    970,397.77x = 378,777,043,618.26
  5. Step 5: Solve for x
    x = 378,777,043,618.26/970,397.77
  6. Step 6: Final answer
    x = 390,331.73

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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.