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Finding the Fourth Proportional to 438,027.87, 604,478.40 and 236,823.87

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Solution

The fourth proportional to 438,027.87, 604,478.40 and 236,823.87 is: 326,816.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,027.87 : 604,478.40 = 236,823.87 : x
  2. Step 2: Convert to fraction form
    438,027.87/604,478.40 = 236,823.87/x
  3. Step 3: Cross multiply
    438,027.87x = 604,478.40 × 236,823.87
  4. Step 4: Simplify right side
    438,027.87x = 143,154,914,019.41
  5. Step 5: Solve for x
    x = 143,154,914,019.41/438,027.87
  6. Step 6: Final answer
    x = 326,816.91

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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.