Home / 1,127,076.20-1,690,718.78-407,597.80

Finding the Fourth Proportional to 1,127,076.20, 1,690,718.78 and 407,597.80

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Solution

The fourth proportional to 1,127,076.20, 1,690,718.78 and 407,597.80 is: 611,434.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,127,076.20 : 1,690,718.78 = 407,597.80 : x
  2. Step 2: Convert to fraction form
    1,127,076.20/1,690,718.78 = 407,597.80/x
  3. Step 3: Cross multiply
    1,127,076.20x = 1,690,718.78 × 407,597.80
  4. Step 4: Simplify right side
    1,127,076.20x = 689,133,255,146.68
  5. Step 5: Solve for x
    x = 689,133,255,146.68/1,127,076.20
  6. Step 6: Final answer
    x = 611,434.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.