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Finding the Fourth Proportional to 659,573.08, 910,134.36 and 369,200.90

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Solution

The fourth proportional to 659,573.08, 910,134.36 and 369,200.90 is: 509,454.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,573.08 : 910,134.36 = 369,200.90 : x
  2. Step 2: Convert to fraction form
    659,573.08/910,134.36 = 369,200.90/x
  3. Step 3: Cross multiply
    659,573.08x = 910,134.36 × 369,200.90
  4. Step 4: Simplify right side
    659,573.08x = 336,022,427,108.26
  5. Step 5: Solve for x
    x = 336,022,427,108.26/659,573.08
  6. Step 6: Final answer
    x = 509,454.43

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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.