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Finding the Fourth Proportional to 542,223.01, 748,256.38 and 300,503.47

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Solution

The fourth proportional to 542,223.01, 748,256.38 and 300,503.47 is: 414,688.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,223.01 : 748,256.38 = 300,503.47 : x
  2. Step 2: Convert to fraction form
    542,223.01/748,256.38 = 300,503.47/x
  3. Step 3: Cross multiply
    542,223.01x = 748,256.38 × 300,503.47
  4. Step 4: Simplify right side
    542,223.01x = 224,853,639,111.05
  5. Step 5: Solve for x
    x = 224,853,639,111.05/542,223.01
  6. Step 6: Final answer
    x = 414,688.49

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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.