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Finding the Fourth Proportional to 659,605.46, 910,270.95 and 369,209.80

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Solution

The fourth proportional to 659,605.46, 910,270.95 and 369,209.80 is: 509,518.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,605.46 : 910,270.95 = 369,209.80 : x
  2. Step 2: Convert to fraction form
    659,605.46/910,270.95 = 369,209.80/x
  3. Step 3: Cross multiply
    659,605.46x = 910,270.95 × 369,209.80
  4. Step 4: Simplify right side
    659,605.46x = 336,080,957,708.75
  5. Step 5: Solve for x
    x = 336,080,957,708.75/659,605.46
  6. Step 6: Final answer
    x = 509,518.16

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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.