Home / 686,261.30-1,029,796.35-286,871.30

Finding the Fourth Proportional to 686,261.30, 1,029,796.35 and 286,871.30

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Solution

The fourth proportional to 686,261.30, 1,029,796.35 and 286,871.30 is: 430,476.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,261.30 : 1,029,796.35 = 286,871.30 : x
  2. Step 2: Convert to fraction form
    686,261.30/1,029,796.35 = 286,871.30/x
  3. Step 3: Cross multiply
    686,261.30x = 1,029,796.35 × 286,871.30
  4. Step 4: Simplify right side
    686,261.30x = 295,419,017,659.76
  5. Step 5: Solve for x
    x = 295,419,017,659.76/686,261.30
  6. Step 6: Final answer
    x = 430,476.00

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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.