Home / 758,979-1,047,376.98-419,439.96

Finding the Fourth Proportional to 758,979, 1,047,376.98 and 419,439.96

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Solution

The fourth proportional to 758,979, 1,047,376.98 and 419,439.96 is: 578,819.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,979 : 1,047,376.98 = 419,439.96 : x
  2. Step 2: Convert to fraction form
    758,979/1,047,376.98 = 419,439.96/x
  3. Step 3: Cross multiply
    758,979x = 1,047,376.98 × 419,439.96
  4. Step 4: Simplify right side
    758,979x = 439,311,758,596.12
  5. Step 5: Solve for x
    x = 439,311,758,596.12/758,979
  6. Step 6: Final answer
    x = 578,819.39

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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.