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Finding the Fourth Proportional to 560,521.61, 773,536.16 and 305,889.20

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Solution

The fourth proportional to 560,521.61, 773,536.16 and 305,889.20 is: 422,136.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,521.61 : 773,536.16 = 305,889.20 : x
  2. Step 2: Convert to fraction form
    560,521.61/773,536.16 = 305,889.20/x
  3. Step 3: Cross multiply
    560,521.61x = 773,536.16 × 305,889.20
  4. Step 4: Simplify right side
    560,521.61x = 236,616,357,153.47
  5. Step 5: Solve for x
    x = 236,616,357,153.47/560,521.61
  6. Step 6: Final answer
    x = 422,136.01

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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.