Home / 660,828.22-911,988.04-374,350.66

Finding the Fourth Proportional to 660,828.22, 911,988.04 and 374,350.66

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Solution

The fourth proportional to 660,828.22, 911,988.04 and 374,350.66 is: 516,629.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,828.22 : 911,988.04 = 374,350.66 : x
  2. Step 2: Convert to fraction form
    660,828.22/911,988.04 = 374,350.66/x
  3. Step 3: Cross multiply
    660,828.22x = 911,988.04 × 374,350.66
  4. Step 4: Simplify right side
    660,828.22x = 341,403,324,686.11
  5. Step 5: Solve for x
    x = 341,403,324,686.11/660,828.22
  6. Step 6: Final answer
    x = 516,629.46

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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.