Home / 721,032.88-1,081,623.12-272,131.60

Finding the Fourth Proportional to 721,032.88, 1,081,623.12 and 272,131.60

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Solution

The fourth proportional to 721,032.88, 1,081,623.12 and 272,131.60 is: 408,225.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,032.88 : 1,081,623.12 = 272,131.60 : x
  2. Step 2: Convert to fraction form
    721,032.88/1,081,623.12 = 272,131.60/x
  3. Step 3: Cross multiply
    721,032.88x = 1,081,623.12 × 272,131.60
  4. Step 4: Simplify right side
    721,032.88x = 294,343,830,242.59
  5. Step 5: Solve for x
    x = 294,343,830,242.59/721,032.88
  6. Step 6: Final answer
    x = 408,225.25

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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.