Home / 438,084.80-657,127.20-298,116.80

Finding the Fourth Proportional to 438,084.80, 657,127.20 and 298,116.80

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Solution

The fourth proportional to 438,084.80, 657,127.20 and 298,116.80 is: 447,175.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,084.80 : 657,127.20 = 298,116.80 : x
  2. Step 2: Convert to fraction form
    438,084.80/657,127.20 = 298,116.80/x
  3. Step 3: Cross multiply
    438,084.80x = 657,127.20 × 298,116.80
  4. Step 4: Simplify right side
    438,084.80x = 195,900,658,056.96
  5. Step 5: Solve for x
    x = 195,900,658,056.96/438,084.80
  6. Step 6: Final answer
    x = 447,175.20

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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.