Home / 684,991.59-945,265.17-379,080.91

Finding the Fourth Proportional to 684,991.59, 945,265.17 and 379,080.91

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Solution

The fourth proportional to 684,991.59, 945,265.17 and 379,080.91 is: 523,118.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,991.59 : 945,265.17 = 379,080.91 : x
  2. Step 2: Convert to fraction form
    684,991.59/945,265.17 = 379,080.91/x
  3. Step 3: Cross multiply
    684,991.59x = 945,265.17 × 379,080.91
  4. Step 4: Simplify right side
    684,991.59x = 358,331,980,834.91
  5. Step 5: Solve for x
    x = 358,331,980,834.91/684,991.59
  6. Step 6: Final answer
    x = 523,118.80

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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.