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Finding the Fourth Proportional to 542,031.09, 748,008.86 and 300,317.45

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Solution

The fourth proportional to 542,031.09, 748,008.86 and 300,317.45 is: 414,441.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,031.09 : 748,008.86 = 300,317.45 : x
  2. Step 2: Convert to fraction form
    542,031.09/748,008.86 = 300,317.45/x
  3. Step 3: Cross multiply
    542,031.09x = 748,008.86 × 300,317.45
  4. Step 4: Simplify right side
    542,031.09x = 224,640,108,170.98
  5. Step 5: Solve for x
    x = 224,640,108,170.98/542,031.09
  6. Step 6: Final answer
    x = 414,441.37

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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.