Home / 842,957.90-1,263,999.45-310,204.70

Finding the Fourth Proportional to 842,957.90, 1,263,999.45 and 310,204.70

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Solution

The fourth proportional to 842,957.90, 1,263,999.45 and 310,204.70 is: 465,146.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,957.90 : 1,263,999.45 = 310,204.70 : x
  2. Step 2: Convert to fraction form
    842,957.90/1,263,999.45 = 310,204.70/x
  3. Step 3: Cross multiply
    842,957.90x = 1,263,999.45 × 310,204.70
  4. Step 4: Simplify right side
    842,957.90x = 392,098,570,187.42
  5. Step 5: Solve for x
    x = 392,098,570,187.42/842,957.90
  6. Step 6: Final answer
    x = 465,146.09

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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.