Home / 751,125.97-1,035,988.76-521,683.55

Finding the Fourth Proportional to 751,125.97, 1,035,988.76 and 521,683.55

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Solution

The fourth proportional to 751,125.97, 1,035,988.76 and 521,683.55 is: 719,530.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,125.97 : 1,035,988.76 = 521,683.55 : x
  2. Step 2: Convert to fraction form
    751,125.97/1,035,988.76 = 521,683.55/x
  3. Step 3: Cross multiply
    751,125.97x = 1,035,988.76 × 521,683.55
  4. Step 4: Simplify right side
    751,125.97x = 540,458,294,086.12
  5. Step 5: Solve for x
    x = 540,458,294,086.12/751,125.97
  6. Step 6: Final answer
    x = 719,530.83

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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.