Home / 813,721.51-1,220,819.27-364,337.28

Finding the Fourth Proportional to 813,721.51, 1,220,819.27 and 364,337.28

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Solution

The fourth proportional to 813,721.51, 1,220,819.27 and 364,337.28 is: 546,612.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,721.51 : 1,220,819.27 = 364,337.28 : x
  2. Step 2: Convert to fraction form
    813,721.51/1,220,819.27 = 364,337.28/x
  3. Step 3: Cross multiply
    813,721.51x = 1,220,819.27 × 364,337.28
  4. Step 4: Simplify right side
    813,721.51x = 444,789,970,381.70
  5. Step 5: Solve for x
    x = 444,789,970,381.70/813,721.51
  6. Step 6: Final answer
    x = 546,612.03

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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.