Home / 588,395.45-811,920.75-330,213.18

Finding the Fourth Proportional to 588,395.45, 811,920.75 and 330,213.18

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Solution

The fourth proportional to 588,395.45, 811,920.75 and 330,213.18 is: 455,657.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    588,395.45 : 811,920.75 = 330,213.18 : x
  2. Step 2: Convert to fraction form
    588,395.45/811,920.75 = 330,213.18/x
  3. Step 3: Cross multiply
    588,395.45x = 811,920.75 × 330,213.18
  4. Step 4: Simplify right side
    588,395.45x = 268,106,936,216.30
  5. Step 5: Solve for x
    x = 268,106,936,216.30/588,395.45
  6. Step 6: Final answer
    x = 455,657.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.