Home / 1,051,711.20-1,578,603.60-519,832.80

Finding the Fourth Proportional to 1,051,711.20, 1,578,603.60 and 519,832.80

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Solution

The fourth proportional to 1,051,711.20, 1,578,603.60 and 519,832.80 is: 780,261.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,051,711.20 : 1,578,603.60 = 519,832.80 : x
  2. Step 2: Convert to fraction form
    1,051,711.20/1,578,603.60 = 519,832.80/x
  3. Step 3: Cross multiply
    1,051,711.20x = 1,578,603.60 × 519,832.80
  4. Step 4: Simplify right side
    1,051,711.20x = 820,609,929,478.08
  5. Step 5: Solve for x
    x = 820,609,929,478.08/1,051,711.20
  6. Step 6: Final answer
    x = 780,261.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.