Home / 1,242,440.62-1,710,336.81-919,542.22

Finding the Fourth Proportional to 1,242,440.62, 1,710,336.81 and 919,542.22

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Solution

The fourth proportional to 1,242,440.62, 1,710,336.81 and 919,542.22 is: 1,265,836.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,440.62 : 1,710,336.81 = 919,542.22 : x
  2. Step 2: Convert to fraction form
    1,242,440.62/1,710,336.81 = 919,542.22/x
  3. Step 3: Cross multiply
    1,242,440.62x = 1,710,336.81 × 919,542.22
  4. Step 4: Simplify right side
    1,242,440.62x = 1,572,726,907,215.12
  5. Step 5: Solve for x
    x = 1,572,726,907,215.12/1,242,440.62
  6. Step 6: Final answer
    x = 1,265,836.68

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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.