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Finding the Fourth Proportional to 563,458.22, 777,570.84 and 305,342.34

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Solution

The fourth proportional to 563,458.22, 777,570.84 and 305,342.34 is: 421,371.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,458.22 : 777,570.84 = 305,342.34 : x
  2. Step 2: Convert to fraction form
    563,458.22/777,570.84 = 305,342.34/x
  3. Step 3: Cross multiply
    563,458.22x = 777,570.84 × 305,342.34
  4. Step 4: Simplify right side
    563,458.22x = 237,425,299,801.37
  5. Step 5: Solve for x
    x = 237,425,299,801.37/563,458.22
  6. Step 6: Final answer
    x = 421,371.61

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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.