Home / 729,173.02-1,006,108.50-419,015.62

Finding the Fourth Proportional to 729,173.02, 1,006,108.50 and 419,015.62

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Solution

The fourth proportional to 729,173.02, 1,006,108.50 and 419,015.62 is: 578,155.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,173.02 : 1,006,108.50 = 419,015.62 : x
  2. Step 2: Convert to fraction form
    729,173.02/1,006,108.50 = 419,015.62/x
  3. Step 3: Cross multiply
    729,173.02x = 1,006,108.50 × 419,015.62
  4. Step 4: Simplify right side
    729,173.02x = 421,575,176,914.77
  5. Step 5: Solve for x
    x = 421,575,176,914.77/729,173.02
  6. Step 6: Final answer
    x = 578,155.21

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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.