Home / 821,548.23-1,232,308.96-316,218.97

Finding the Fourth Proportional to 821,548.23, 1,232,308.96 and 316,218.97

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Solution

The fourth proportional to 821,548.23, 1,232,308.96 and 316,218.97 is: 474,323.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,548.23 : 1,232,308.96 = 316,218.97 : x
  2. Step 2: Convert to fraction form
    821,548.23/1,232,308.96 = 316,218.97/x
  3. Step 3: Cross multiply
    821,548.23x = 1,232,308.96 × 316,218.97
  4. Step 4: Simplify right side
    821,548.23x = 389,679,470,052.97
  5. Step 5: Solve for x
    x = 389,679,470,052.97/821,548.23
  6. Step 6: Final answer
    x = 474,323.30

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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.