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Finding the Fourth Proportional to 542,743.34, 748,495.68 and 338,813.18

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Solution

The fourth proportional to 542,743.34, 748,495.68 and 338,813.18 is: 467,256.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,743.34 : 748,495.68 = 338,813.18 : x
  2. Step 2: Convert to fraction form
    542,743.34/748,495.68 = 338,813.18/x
  3. Step 3: Cross multiply
    542,743.34x = 748,495.68 × 338,813.18
  4. Step 4: Simplify right side
    542,743.34x = 253,600,197,814.58
  5. Step 5: Solve for x
    x = 253,600,197,814.58/542,743.34
  6. Step 6: Final answer
    x = 467,256.22

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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.