Home / 1,159,711.89-1,600,490.07-643,563.51

Finding the Fourth Proportional to 1,159,711.89, 1,600,490.07 and 643,563.51

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Solution

The fourth proportional to 1,159,711.89, 1,600,490.07 and 643,563.51 is: 888,166.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,159,711.89 : 1,600,490.07 = 643,563.51 : x
  2. Step 2: Convert to fraction form
    1,159,711.89/1,600,490.07 = 643,563.51/x
  3. Step 3: Cross multiply
    1,159,711.89x = 1,600,490.07 × 643,563.51
  4. Step 4: Simplify right side
    1,159,711.89x = 1,030,017,007,169.35
  5. Step 5: Solve for x
    x = 1,030,017,007,169.35/1,159,711.89
  6. Step 6: Final answer
    x = 888,166.29

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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.