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Finding the Fourth Proportional to 542,567.78, 748,752.54 and 300,860.54

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Solution

The fourth proportional to 542,567.78, 748,752.54 and 300,860.54 is: 415,192.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,567.78 : 748,752.54 = 300,860.54 : x
  2. Step 2: Convert to fraction form
    542,567.78/748,752.54 = 300,860.54/x
  3. Step 3: Cross multiply
    542,567.78x = 748,752.54 × 300,860.54
  4. Step 4: Simplify right side
    542,567.78x = 225,270,093,510.77
  5. Step 5: Solve for x
    x = 225,270,093,510.77/542,567.78
  6. Step 6: Final answer
    x = 415,192.54

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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.