Home / 1,231,957.78-1,700,135.98-680,709

Finding the Fourth Proportional to 1,231,957.78, 1,700,135.98 and 680,709

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Solution

The fourth proportional to 1,231,957.78, 1,700,135.98 and 680,709 is: 939,397.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,957.78 : 1,700,135.98 = 680,709 : x
  2. Step 2: Convert to fraction form
    1,231,957.78/1,700,135.98 = 680,709/x
  3. Step 3: Cross multiply
    1,231,957.78x = 1,700,135.98 × 680,709
  4. Step 4: Simplify right side
    1,231,957.78x = 1,157,297,862,809.82
  5. Step 5: Solve for x
    x = 1,157,297,862,809.82/1,231,957.78
  6. Step 6: Final answer
    x = 939,397.34

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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.