Home / 1,158,703.28-1,598,954.81-642,478.15

Finding the Fourth Proportional to 1,158,703.28, 1,598,954.81 and 642,478.15

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Solution

The fourth proportional to 1,158,703.28, 1,598,954.81 and 642,478.15 is: 886,588.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,158,703.28 : 1,598,954.81 = 642,478.15 : x
  2. Step 2: Convert to fraction form
    1,158,703.28/1,598,954.81 = 642,478.15/x
  3. Step 3: Cross multiply
    1,158,703.28x = 1,598,954.81 × 642,478.15
  4. Step 4: Simplify right side
    1,158,703.28x = 1,027,293,530,662.64
  5. Step 5: Solve for x
    x = 1,027,293,530,662.64/1,158,703.28
  6. Step 6: Final answer
    x = 886,588.96

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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.