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Finding the Fourth Proportional to 557,090.51, 772,718.05 and 542,324.72

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Solution

The fourth proportional to 557,090.51, 772,718.05 and 542,324.72 is: 752,237.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,090.51 : 772,718.05 = 542,324.72 : x
  2. Step 2: Convert to fraction form
    557,090.51/772,718.05 = 542,324.72/x
  3. Step 3: Cross multiply
    557,090.51x = 772,718.05 × 542,324.72
  4. Step 4: Simplify right side
    557,090.51x = 419,064,099,893.65
  5. Step 5: Solve for x
    x = 419,064,099,893.65/557,090.51
  6. Step 6: Final answer
    x = 752,237.01

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.