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Finding the Fourth Proportional to 810,659.64, 1,118,596.01 and 461,809.22

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Solution

The fourth proportional to 810,659.64, 1,118,596.01 and 461,809.22 is: 637,231.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,659.64 : 1,118,596.01 = 461,809.22 : x
  2. Step 2: Convert to fraction form
    810,659.64/1,118,596.01 = 461,809.22/x
  3. Step 3: Cross multiply
    810,659.64x = 1,118,596.01 × 461,809.22
  4. Step 4: Simplify right side
    810,659.64x = 516,577,956,955.25
  5. Step 5: Solve for x
    x = 516,577,956,955.25/810,659.64
  6. Step 6: Final answer
    x = 637,231.62

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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.