Home / 726,679.80-1,090,019.70-540,055.80

Finding the Fourth Proportional to 726,679.80, 1,090,019.70 and 540,055.80

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Solution

The fourth proportional to 726,679.80, 1,090,019.70 and 540,055.80 is: 810,083.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,679.80 : 1,090,019.70 = 540,055.80 : x
  2. Step 2: Convert to fraction form
    726,679.80/1,090,019.70 = 540,055.80/x
  3. Step 3: Cross multiply
    726,679.80x = 1,090,019.70 × 540,055.80
  4. Step 4: Simplify right side
    726,679.80x = 588,671,461,099.26
  5. Step 5: Solve for x
    x = 588,671,461,099.26/726,679.80
  6. Step 6: Final answer
    x = 810,083.70

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.