Home / 725,650.29-1,001,409.39-398,977.11

Finding the Fourth Proportional to 725,650.29, 1,001,409.39 and 398,977.11

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Solution

The fourth proportional to 725,650.29, 1,001,409.39 and 398,977.11 is: 550,595.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,650.29 : 1,001,409.39 = 398,977.11 : x
  2. Step 2: Convert to fraction form
    725,650.29/1,001,409.39 = 398,977.11/x
  3. Step 3: Cross multiply
    725,650.29x = 1,001,409.39 × 398,977.11
  4. Step 4: Simplify right side
    725,650.29x = 399,539,424,349.06
  5. Step 5: Solve for x
    x = 399,539,424,349.06/725,650.29
  6. Step 6: Final answer
    x = 550,595.00

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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.