Home / 838,212.54-1,257,365.28-239,127.64

Finding the Fourth Proportional to 838,212.54, 1,257,365.28 and 239,127.64

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Solution

The fourth proportional to 838,212.54, 1,257,365.28 and 239,127.64 is: 358,704.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,212.54 : 1,257,365.28 = 239,127.64 : x
  2. Step 2: Convert to fraction form
    838,212.54/1,257,365.28 = 239,127.64/x
  3. Step 3: Cross multiply
    838,212.54x = 1,257,365.28 × 239,127.64
  4. Step 4: Simplify right side
    838,212.54x = 300,670,792,024.34
  5. Step 5: Solve for x
    x = 300,670,792,024.34/838,212.54
  6. Step 6: Final answer
    x = 358,704.72

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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.