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Finding the Fourth Proportional to 896,700, 1,237,446 and 494,300.64

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Solution

The fourth proportional to 896,700, 1,237,446 and 494,300.64 is: 682,134.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    896,700 : 1,237,446 = 494,300.64 : x
  2. Step 2: Convert to fraction form
    896,700/1,237,446 = 494,300.64/x
  3. Step 3: Cross multiply
    896,700x = 1,237,446 × 494,300.64
  4. Step 4: Simplify right side
    896,700x = 611,670,349,765.44
  5. Step 5: Solve for x
    x = 611,670,349,765.44/896,700
  6. Step 6: Final answer
    x = 682,134.88

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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.