Home / 1,158,312.84-1,598,481.96-642,078

Finding the Fourth Proportional to 1,158,312.84, 1,598,481.96 and 642,078

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Solution

The fourth proportional to 1,158,312.84, 1,598,481.96 and 642,078 is: 886,073.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,158,312.84 : 1,598,481.96 = 642,078 : x
  2. Step 2: Convert to fraction form
    1,158,312.84/1,598,481.96 = 642,078/x
  3. Step 3: Cross multiply
    1,158,312.84x = 1,598,481.96 × 642,078
  4. Step 4: Simplify right side
    1,158,312.84x = 1,026,350,099,912.88
  5. Step 5: Solve for x
    x = 1,026,350,099,912.88/1,158,312.84
  6. Step 6: Final answer
    x = 886,073.32

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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.