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Finding the Fourth Proportional to 560,521.86, 773,536.51 and 305,889.45

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Solution

The fourth proportional to 560,521.86, 773,536.51 and 305,889.45 is: 422,136.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,521.86 : 773,536.51 = 305,889.45 : x
  2. Step 2: Convert to fraction form
    560,521.86/773,536.51 = 305,889.45/x
  3. Step 3: Cross multiply
    560,521.86x = 773,536.51 × 305,889.45
  4. Step 4: Simplify right side
    560,521.86x = 236,616,657,598.82
  5. Step 5: Solve for x
    x = 236,616,657,598.82/560,521.86
  6. Step 6: Final answer
    x = 422,136.36

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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.