Home / 725,299.55-1,000,895.19-403,010.47

Finding the Fourth Proportional to 725,299.55, 1,000,895.19 and 403,010.47

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Solution

The fourth proportional to 725,299.55, 1,000,895.19 and 403,010.47 is: 556,144.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,299.55 : 1,000,895.19 = 403,010.47 : x
  2. Step 2: Convert to fraction form
    725,299.55/1,000,895.19 = 403,010.47/x
  3. Step 3: Cross multiply
    725,299.55x = 1,000,895.19 × 403,010.47
  4. Step 4: Simplify right side
    725,299.55x = 403,371,240,942.64
  5. Step 5: Solve for x
    x = 403,371,240,942.64/725,299.55
  6. Step 6: Final answer
    x = 556,144.34

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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.