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Finding the Fourth Proportional to 869,507.64, 1,304,482.08 and 270,473.28

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Solution

The fourth proportional to 869,507.64, 1,304,482.08 and 270,473.28 is: 405,778.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,507.64 : 1,304,482.08 = 270,473.28 : x
  2. Step 2: Convert to fraction form
    869,507.64/1,304,482.08 = 270,473.28/x
  3. Step 3: Cross multiply
    869,507.64x = 1,304,482.08 × 270,473.28
  4. Step 4: Simplify right side
    869,507.64x = 352,827,546,878.82
  5. Step 5: Solve for x
    x = 352,827,546,878.82/869,507.64
  6. Step 6: Final answer
    x = 405,778.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.