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Finding the Fourth Proportional to 896,618, 1,237,332.84 and 494,218.64

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Solution

The fourth proportional to 896,618, 1,237,332.84 and 494,218.64 is: 682,021.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    896,618 : 1,237,332.84 = 494,218.64 : x
  2. Step 2: Convert to fraction form
    896,618/1,237,332.84 = 494,218.64/x
  3. Step 3: Cross multiply
    896,618x = 1,237,332.84 × 494,218.64
  4. Step 4: Simplify right side
    896,618x = 611,512,953,412.14
  5. Step 5: Solve for x
    x = 611,512,953,412.14/896,618
  6. Step 6: Final answer
    x = 682,021.72

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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.