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Finding the Fourth Proportional to 887,121, 1,224,226.98 and 484,713

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Solution

The fourth proportional to 887,121, 1,224,226.98 and 484,713 is: 668,903.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,121 : 1,224,226.98 = 484,713 : x
  2. Step 2: Convert to fraction form
    887,121/1,224,226.98 = 484,713/x
  3. Step 3: Cross multiply
    887,121x = 1,224,226.98 × 484,713
  4. Step 4: Simplify right side
    887,121x = 593,398,732,156.74
  5. Step 5: Solve for x
    x = 593,398,732,156.74/887,121
  6. Step 6: Final answer
    x = 668,903.94

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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.