Home / 906,138.89-1,358,310.53-425,506.31

Finding the Fourth Proportional to 906,138.89, 1,358,310.53 and 425,506.31

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Solution

The fourth proportional to 906,138.89, 1,358,310.53 and 425,506.31 is: 637,837.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,138.89 : 1,358,310.53 = 425,506.31 : x
  2. Step 2: Convert to fraction form
    906,138.89/1,358,310.53 = 425,506.31/x
  3. Step 3: Cross multiply
    906,138.89x = 1,358,310.53 × 425,506.31
  4. Step 4: Simplify right side
    906,138.89x = 577,969,704,318.34
  5. Step 5: Solve for x
    x = 577,969,704,318.34/906,138.89
  6. Step 6: Final answer
    x = 637,837.88

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1.5x scale

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.