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Finding the Fourth Proportional to 611,626.10, 844,055.25 and 339,719.22

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Solution

The fourth proportional to 611,626.10, 844,055.25 and 339,719.22 is: 468,818.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,626.10 : 844,055.25 = 339,719.22 : x
  2. Step 2: Convert to fraction form
    611,626.10/844,055.25 = 339,719.22/x
  3. Step 3: Cross multiply
    611,626.10x = 844,055.25 × 339,719.22
  4. Step 4: Simplify right side
    611,626.10x = 286,741,791,166.91
  5. Step 5: Solve for x
    x = 286,741,791,166.91/611,626.10
  6. Step 6: Final answer
    x = 468,818.76

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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.