Home / 811,582.80-1,215,041.40-496,654.80

Finding the Fourth Proportional to 811,582.80, 1,215,041.40 and 496,654.80

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Solution

The fourth proportional to 811,582.80, 1,215,041.40 and 496,654.80 is: 743,554.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,582.80 : 1,215,041.40 = 496,654.80 : x
  2. Step 2: Convert to fraction form
    811,582.80/1,215,041.40 = 496,654.80/x
  3. Step 3: Cross multiply
    811,582.80x = 1,215,041.40 × 496,654.80
  4. Step 4: Simplify right side
    811,582.80x = 603,456,143,508.72
  5. Step 5: Solve for x
    x = 603,456,143,508.72/811,582.80
  6. Step 6: Final answer
    x = 743,554.62

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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.