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Finding the Fourth Proportional to 438,083.56, 604,406.82 and 357,371.56

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Solution

The fourth proportional to 438,083.56, 604,406.82 and 357,371.56 is: 493,051.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,083.56 : 604,406.82 = 357,371.56 : x
  2. Step 2: Convert to fraction form
    438,083.56/604,406.82 = 357,371.56/x
  3. Step 3: Cross multiply
    438,083.56x = 604,406.82 × 357,371.56
  4. Step 4: Simplify right side
    438,083.56x = 215,997,808,138.04
  5. Step 5: Solve for x
    x = 215,997,808,138.04/438,083.56
  6. Step 6: Final answer
    x = 493,051.62

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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.