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Finding the Fourth Proportional to 666,210.30, 919,319.67 and 364,404.30

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Solution

The fourth proportional to 666,210.30, 919,319.67 and 364,404.30 is: 502,850.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,210.30 : 919,319.67 = 364,404.30 : x
  2. Step 2: Convert to fraction form
    666,210.30/919,319.67 = 364,404.30/x
  3. Step 3: Cross multiply
    666,210.30x = 919,319.67 × 364,404.30
  4. Step 4: Simplify right side
    666,210.30x = 335,004,040,822.58
  5. Step 5: Solve for x
    x = 335,004,040,822.58/666,210.30
  6. Step 6: Final answer
    x = 502,850.29

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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.