Home / 809,741.80-1,118,190.18-542,247.40

Finding the Fourth Proportional to 809,741.80, 1,118,190.18 and 542,247.40

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Solution

The fourth proportional to 809,741.80, 1,118,190.18 and 542,247.40 is: 748,801.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,741.80 : 1,118,190.18 = 542,247.40 : x
  2. Step 2: Convert to fraction form
    809,741.80/1,118,190.18 = 542,247.40/x
  3. Step 3: Cross multiply
    809,741.80x = 1,118,190.18 × 542,247.40
  4. Step 4: Simplify right side
    809,741.80x = 606,335,717,810.53
  5. Step 5: Solve for x
    x = 606,335,717,810.53/809,741.80
  6. Step 6: Final answer
    x = 748,801.31

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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.