Home / 828,780.95-1,243,048.25-229,679.64

Finding the Fourth Proportional to 828,780.95, 1,243,048.25 and 229,679.64

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Solution

The fourth proportional to 828,780.95, 1,243,048.25 and 229,679.64 is: 344,485.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,780.95 : 1,243,048.25 = 229,679.64 : x
  2. Step 2: Convert to fraction form
    828,780.95/1,243,048.25 = 229,679.64/x
  3. Step 3: Cross multiply
    828,780.95x = 1,243,048.25 × 229,679.64
  4. Step 4: Simplify right side
    828,780.95x = 285,502,875,136.83
  5. Step 5: Solve for x
    x = 285,502,875,136.83/828,780.95
  6. Step 6: Final answer
    x = 344,485.32

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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.