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Finding the Fourth Proportional to 560,521.42, 773,535.90 and 305,889.01

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Solution

The fourth proportional to 560,521.42, 773,535.90 and 305,889.01 is: 422,135.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,521.42 : 773,535.90 = 305,889.01 : x
  2. Step 2: Convert to fraction form
    560,521.42/773,535.90 = 305,889.01/x
  3. Step 3: Cross multiply
    560,521.42x = 773,535.90 × 305,889.01
  4. Step 4: Simplify right side
    560,521.42x = 236,616,130,650.46
  5. Step 5: Solve for x
    x = 236,616,130,650.46/560,521.42
  6. Step 6: Final answer
    x = 422,135.75

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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.