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Finding the Fourth Proportional to 896,418, 1,237,056.87 and 494,010

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Solution

The fourth proportional to 896,418, 1,237,056.87 and 494,010 is: 681,733.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    896,418 : 1,237,056.87 = 494,010 : x
  2. Step 2: Convert to fraction form
    896,418/1,237,056.87 = 494,010/x
  3. Step 3: Cross multiply
    896,418x = 1,237,056.87 × 494,010
  4. Step 4: Simplify right side
    896,418x = 611,118,464,348.70
  5. Step 5: Solve for x
    x = 611,118,464,348.70/896,418
  6. Step 6: Final answer
    x = 681,733.82

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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.