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Finding the Fourth Proportional to 666,012.38, 919,097.08 and 364,206.38

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Solution

The fourth proportional to 666,012.38, 919,097.08 and 364,206.38 is: 502,604.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,012.38 : 919,097.08 = 364,206.38 : x
  2. Step 2: Convert to fraction form
    666,012.38/919,097.08 = 364,206.38/x
  3. Step 3: Cross multiply
    666,012.38x = 919,097.08 × 364,206.38
  4. Step 4: Simplify right side
    666,012.38x = 334,741,014,869.37
  5. Step 5: Solve for x
    x = 334,741,014,869.37/666,012.38
  6. Step 6: Final answer
    x = 502,604.80

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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.