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Finding the Fourth Proportional to 538,115.33, 742,599.07 and 296,397.89

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Solution

The fourth proportional to 538,115.33, 742,599.07 and 296,397.89 is: 409,029.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,115.33 : 742,599.07 = 296,397.89 : x
  2. Step 2: Convert to fraction form
    538,115.33/742,599.07 = 296,397.89/x
  3. Step 3: Cross multiply
    538,115.33x = 742,599.07 × 296,397.89
  4. Step 4: Simplify right side
    538,115.33x = 220,104,801,639.08
  5. Step 5: Solve for x
    x = 220,104,801,639.08/538,115.33
  6. Step 6: Final answer
    x = 409,029.05

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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.