Home / 725,310.77-1,000,908.99-403,012.58

Finding the Fourth Proportional to 725,310.77, 1,000,908.99 and 403,012.58

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Solution

The fourth proportional to 725,310.77, 1,000,908.99 and 403,012.58 is: 556,146.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,310.77 : 1,000,908.99 = 403,012.58 : x
  2. Step 2: Convert to fraction form
    725,310.77/1,000,908.99 = 403,012.58/x
  3. Step 3: Cross multiply
    725,310.77x = 1,000,908.99 × 403,012.58
  4. Step 4: Simplify right side
    725,310.77x = 403,378,909,400.55
  5. Step 5: Solve for x
    x = 403,378,909,400.55/725,310.77
  6. Step 6: Final answer
    x = 556,146.32

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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.