Home / 811,192.80-1,214,456.40-496,264.80

Finding the Fourth Proportional to 811,192.80, 1,214,456.40 and 496,264.80

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Solution

The fourth proportional to 811,192.80, 1,214,456.40 and 496,264.80 is: 742,970.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,192.80 : 1,214,456.40 = 496,264.80 : x
  2. Step 2: Convert to fraction form
    811,192.80/1,214,456.40 = 496,264.80/x
  3. Step 3: Cross multiply
    811,192.80x = 1,214,456.40 × 496,264.80
  4. Step 4: Simplify right side
    811,192.80x = 602,691,962,454.72
  5. Step 5: Solve for x
    x = 602,691,962,454.72/811,192.80
  6. Step 6: Final answer
    x = 742,970.06

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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.