Home / 1,108,562.51-1,529,708.03-643,344.03

Finding the Fourth Proportional to 1,108,562.51, 1,529,708.03 and 643,344.03

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Solution

The fourth proportional to 1,108,562.51, 1,529,708.03 and 643,344.03 is: 887,751.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,108,562.51 : 1,529,708.03 = 643,344.03 : x
  2. Step 2: Convert to fraction form
    1,108,562.51/1,529,708.03 = 643,344.03/x
  3. Step 3: Cross multiply
    1,108,562.51x = 1,529,708.03 × 643,344.03
  4. Step 4: Simplify right side
    1,108,562.51x = 984,128,525,526.84
  5. Step 5: Solve for x
    x = 984,128,525,526.84/1,108,562.51
  6. Step 6: Final answer
    x = 887,751.95

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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.