Home / 1,108,561.01-1,529,705.96-643,342.53

Finding the Fourth Proportional to 1,108,561.01, 1,529,705.96 and 643,342.53

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Solution

The fourth proportional to 1,108,561.01, 1,529,705.96 and 643,342.53 is: 887,749.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,108,561.01 : 1,529,705.96 = 643,342.53 : x
  2. Step 2: Convert to fraction form
    1,108,561.01/1,529,705.96 = 643,342.53/x
  3. Step 3: Cross multiply
    1,108,561.01x = 1,529,705.96 × 643,342.53
  4. Step 4: Simplify right side
    1,108,561.01x = 984,124,899,245.77
  5. Step 5: Solve for x
    x = 984,124,899,245.77/1,108,561.01
  6. Step 6: Final answer
    x = 887,749.88

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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.