Home / 813,148.52-1,218,710.68-524,198.21

Finding the Fourth Proportional to 813,148.52, 1,218,710.68 and 524,198.21

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Solution

The fourth proportional to 813,148.52, 1,218,710.68 and 524,198.21 is: 785,644.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,148.52 : 1,218,710.68 = 524,198.21 : x
  2. Step 2: Convert to fraction form
    813,148.52/1,218,710.68 = 524,198.21/x
  3. Step 3: Cross multiply
    813,148.52x = 1,218,710.68 × 524,198.21
  4. Step 4: Simplify right side
    813,148.52x = 638,845,949,559.83
  5. Step 5: Solve for x
    x = 638,845,949,559.83/813,148.52
  6. Step 6: Final answer
    x = 785,644.86

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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.