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Finding the Fourth Proportional to 542,720.01, 748,999.59 and 301,080.42

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Solution

The fourth proportional to 542,720.01, 748,999.59 and 301,080.42 is: 415,516.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,720.01 : 748,999.59 = 301,080.42 : x
  2. Step 2: Convert to fraction form
    542,720.01/748,999.59 = 301,080.42/x
  3. Step 3: Cross multiply
    542,720.01x = 748,999.59 × 301,080.42
  4. Step 4: Simplify right side
    542,720.01x = 225,509,111,137.03
  5. Step 5: Solve for x
    x = 225,509,111,137.03/542,720.01
  6. Step 6: Final answer
    x = 415,516.49

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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.