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Finding the Fourth Proportional to 438,027.48, 604,477.08 and 247,040.28

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Solution

The fourth proportional to 438,027.48, 604,477.08 and 247,040.28 is: 340,915.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,027.48 : 604,477.08 = 247,040.28 : x
  2. Step 2: Convert to fraction form
    438,027.48/604,477.08 = 247,040.28/x
  3. Step 3: Cross multiply
    438,027.48x = 604,477.08 × 247,040.28
  4. Step 4: Simplify right side
    438,027.48x = 149,330,187,096.78
  5. Step 5: Solve for x
    x = 149,330,187,096.78/438,027.48
  6. Step 6: Final answer
    x = 340,915.11

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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.