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Finding the Fourth Proportional to 653,846.49, 902,710.71 and 518,427.45

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Solution

The fourth proportional to 653,846.49, 902,710.71 and 518,427.45 is: 715,749.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,846.49 : 902,710.71 = 518,427.45 : x
  2. Step 2: Convert to fraction form
    653,846.49/902,710.71 = 518,427.45/x
  3. Step 3: Cross multiply
    653,846.49x = 902,710.71 × 518,427.45
  4. Step 4: Simplify right side
    653,846.49x = 467,990,011,472.99
  5. Step 5: Solve for x
    x = 467,990,011,472.99/653,846.49
  6. Step 6: Final answer
    x = 715,749.06

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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.