Home / 1,172,787.89-1,618,599.79-656,738.31

Finding the Fourth Proportional to 1,172,787.89, 1,618,599.79 and 656,738.31

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Solution

The fourth proportional to 1,172,787.89, 1,618,599.79 and 656,738.31 is: 906,384.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,172,787.89 : 1,618,599.79 = 656,738.31 : x
  2. Step 2: Convert to fraction form
    1,172,787.89/1,618,599.79 = 656,738.31/x
  3. Step 3: Cross multiply
    1,172,787.89x = 1,618,599.79 × 656,738.31
  4. Step 4: Simplify right side
    1,172,787.89x = 1,062,996,480,916.11
  5. Step 5: Solve for x
    x = 1,062,996,480,916.11/1,172,787.89
  6. Step 6: Final answer
    x = 906,384.26

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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.