Home / 729,175.02-1,006,111.26-419,017.62

Finding the Fourth Proportional to 729,175.02, 1,006,111.26 and 419,017.62

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Solution

The fourth proportional to 729,175.02, 1,006,111.26 and 419,017.62 is: 578,157.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,175.02 : 1,006,111.26 = 419,017.62 : x
  2. Step 2: Convert to fraction form
    729,175.02/1,006,111.26 = 419,017.62/x
  3. Step 3: Cross multiply
    729,175.02x = 1,006,111.26 × 419,017.62
  4. Step 4: Simplify right side
    729,175.02x = 421,578,345,620.40
  5. Step 5: Solve for x
    x = 421,578,345,620.40/729,175.02
  6. Step 6: Final answer
    x = 578,157.96

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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.