Home / 725,316.12-1,080,684.18-684,571.50

Finding the Fourth Proportional to 725,316.12, 1,080,684.18 and 684,571.50

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Solution

The fourth proportional to 725,316.12, 1,080,684.18 and 684,571.50 is: 1,019,976.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,316.12 : 1,080,684.18 = 684,571.50 : x
  2. Step 2: Convert to fraction form
    725,316.12/1,080,684.18 = 684,571.50/x
  3. Step 3: Cross multiply
    725,316.12x = 1,080,684.18 × 684,571.50
  4. Step 4: Simplify right side
    725,316.12x = 739,805,590,128.87
  5. Step 5: Solve for x
    x = 739,805,590,128.87/725,316.12
  6. Step 6: Final answer
    x = 1,019,976.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.