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Finding the Fourth Proportional to 559,244.88, 771,494.09 and 378,020.07

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Solution

The fourth proportional to 559,244.88, 771,494.09 and 378,020.07 is: 521,489.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,244.88 : 771,494.09 = 378,020.07 : x
  2. Step 2: Convert to fraction form
    559,244.88/771,494.09 = 378,020.07/x
  3. Step 3: Cross multiply
    559,244.88x = 771,494.09 × 378,020.07
  4. Step 4: Simplify right side
    559,244.88x = 291,640,248,016.29
  5. Step 5: Solve for x
    x = 291,640,248,016.29/559,244.88
  6. Step 6: Final answer
    x = 521,489.35

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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.