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Finding the Fourth Proportional to 659,667.88, 910,264.80 and 369,295.30

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Solution

The fourth proportional to 659,667.88, 910,264.80 and 369,295.30 is: 509,584.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,667.88 : 910,264.80 = 369,295.30 : x
  2. Step 2: Convert to fraction form
    659,667.88/910,264.80 = 369,295.30/x
  3. Step 3: Cross multiply
    659,667.88x = 910,264.80 × 369,295.30
  4. Step 4: Simplify right side
    659,667.88x = 336,156,512,395.44
  5. Step 5: Solve for x
    x = 336,156,512,395.44/659,667.88
  6. Step 6: Final answer
    x = 509,584.48

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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.