Home / 725,617.61-1,001,326.75-398,928.25

Finding the Fourth Proportional to 725,617.61, 1,001,326.75 and 398,928.25

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Solution

The fourth proportional to 725,617.61, 1,001,326.75 and 398,928.25 is: 550,506.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,617.61 : 1,001,326.75 = 398,928.25 : x
  2. Step 2: Convert to fraction form
    725,617.61/1,001,326.75 = 398,928.25/x
  3. Step 3: Cross multiply
    725,617.61x = 1,001,326.75 × 398,928.25
  4. Step 4: Simplify right side
    725,617.61x = 399,457,528,055.69
  5. Step 5: Solve for x
    x = 399,457,528,055.69/725,617.61
  6. Step 6: Final answer
    x = 550,506.94

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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.