Home / 1,020,076.40-1,530,172.20-310,127.60

Finding the Fourth Proportional to 1,020,076.40, 1,530,172.20 and 310,127.60

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Solution

The fourth proportional to 1,020,076.40, 1,530,172.20 and 310,127.60 is: 465,208.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,076.40 : 1,530,172.20 = 310,127.60 : x
  2. Step 2: Convert to fraction form
    1,020,076.40/1,530,172.20 = 310,127.60/x
  3. Step 3: Cross multiply
    1,020,076.40x = 1,530,172.20 × 310,127.60
  4. Step 4: Simplify right side
    1,020,076.40x = 474,548,631,972.72
  5. Step 5: Solve for x
    x = 474,548,631,972.72/1,020,076.40
  6. Step 6: Final answer
    x = 465,208.91

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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.