Home / 1,208,712.34-1,667,988.21-664,848.10

Finding the Fourth Proportional to 1,208,712.34, 1,667,988.21 and 664,848.10

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Solution

The fourth proportional to 1,208,712.34, 1,667,988.21 and 664,848.10 is: 917,471.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,712.34 : 1,667,988.21 = 664,848.10 : x
  2. Step 2: Convert to fraction form
    1,208,712.34/1,667,988.21 = 664,848.10/x
  3. Step 3: Cross multiply
    1,208,712.34x = 1,667,988.21 × 664,848.10
  4. Step 4: Simplify right side
    1,208,712.34x = 1,108,958,792,240.90
  5. Step 5: Solve for x
    x = 1,108,958,792,240.90/1,208,712.34
  6. Step 6: Final answer
    x = 917,471.23

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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.