Home / 712,185.15-982,658.37-421,652.46

Finding the Fourth Proportional to 712,185.15, 982,658.37 and 421,652.46

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Solution

The fourth proportional to 712,185.15, 982,658.37 and 421,652.46 is: 581,787.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,185.15 : 982,658.37 = 421,652.46 : x
  2. Step 2: Convert to fraction form
    712,185.15/982,658.37 = 421,652.46/x
  3. Step 3: Cross multiply
    712,185.15x = 982,658.37 × 421,652.46
  4. Step 4: Simplify right side
    712,185.15x = 414,340,319,050.09
  5. Step 5: Solve for x
    x = 414,340,319,050.09/712,185.15
  6. Step 6: Final answer
    x = 581,787.36

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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.