Home / 1,159,340.58-1,599,982.88-643,145.40

Finding the Fourth Proportional to 1,159,340.58, 1,599,982.88 and 643,145.40

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Solution

The fourth proportional to 1,159,340.58, 1,599,982.88 and 643,145.40 is: 887,592.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,159,340.58 : 1,599,982.88 = 643,145.40 : x
  2. Step 2: Convert to fraction form
    1,159,340.58/1,599,982.88 = 643,145.40/x
  3. Step 3: Cross multiply
    1,159,340.58x = 1,599,982.88 × 643,145.40
  4. Step 4: Simplify right side
    1,159,340.58x = 1,029,021,626,135.03
  5. Step 5: Solve for x
    x = 1,029,021,626,135.03/1,159,340.58
  6. Step 6: Final answer
    x = 887,592.17

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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.