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Finding the Fourth Proportional to 422,759.63, 583,714.47 and 272,119.07

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Solution

The fourth proportional to 422,759.63, 583,714.47 and 272,119.07 is: 375,721.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,759.63 : 583,714.47 = 272,119.07 : x
  2. Step 2: Convert to fraction form
    422,759.63/583,714.47 = 272,119.07/x
  3. Step 3: Cross multiply
    422,759.63x = 583,714.47 × 272,119.07
  4. Step 4: Simplify right side
    422,759.63x = 158,839,835,803.37
  5. Step 5: Solve for x
    x = 158,839,835,803.37/422,759.63
  6. Step 6: Final answer
    x = 375,721.39

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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.