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Finding the Fourth Proportional to 659,396.22, 910,015.65 and 369,036.88

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Solution

The fourth proportional to 659,396.22, 910,015.65 and 369,036.88 is: 509,298.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,396.22 : 910,015.65 = 369,036.88 : x
  2. Step 2: Convert to fraction form
    659,396.22/910,015.65 = 369,036.88/x
  3. Step 3: Cross multiply
    659,396.22x = 910,015.65 × 369,036.88
  4. Step 4: Simplify right side
    659,396.22x = 335,829,336,227.17
  5. Step 5: Solve for x
    x = 335,829,336,227.17/659,396.22
  6. Step 6: Final answer
    x = 509,298.24

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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.