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Finding the Fourth Proportional to 538,893.07, 808,339.55 and 302,254.20

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Solution

The fourth proportional to 538,893.07, 808,339.55 and 302,254.20 is: 453,381.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,893.07 : 808,339.55 = 302,254.20 : x
  2. Step 2: Convert to fraction form
    538,893.07/808,339.55 = 302,254.20/x
  3. Step 3: Cross multiply
    538,893.07x = 808,339.55 × 302,254.20
  4. Step 4: Simplify right side
    538,893.07x = 244,324,024,013.61
  5. Step 5: Solve for x
    x = 244,324,024,013.61/538,893.07
  6. Step 6: Final answer
    x = 453,381.27

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.