Home / 684,482.28-1,027,654.92-385,174.32

Finding the Fourth Proportional to 684,482.28, 1,027,654.92 and 385,174.32

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Solution

The fourth proportional to 684,482.28, 1,027,654.92 and 385,174.32 is: 578,285.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,482.28 : 1,027,654.92 = 385,174.32 : x
  2. Step 2: Convert to fraction form
    684,482.28/1,027,654.92 = 385,174.32/x
  3. Step 3: Cross multiply
    684,482.28x = 1,027,654.92 × 385,174.32
  4. Step 4: Simplify right side
    684,482.28x = 395,826,285,005.65
  5. Step 5: Solve for x
    x = 395,826,285,005.65/684,482.28
  6. Step 6: Final answer
    x = 578,285.66

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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.