Home / 840,497.78-1,159,881.54-477,921.74

Finding the Fourth Proportional to 840,497.78, 1,159,881.54 and 477,921.74

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Solution

The fourth proportional to 840,497.78, 1,159,881.54 and 477,921.74 is: 659,528.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,497.78 : 1,159,881.54 = 477,921.74 : x
  2. Step 2: Convert to fraction form
    840,497.78/1,159,881.54 = 477,921.74/x
  3. Step 3: Cross multiply
    840,497.78x = 1,159,881.54 × 477,921.74
  4. Step 4: Simplify right side
    840,497.78x = 554,332,603,790.68
  5. Step 5: Solve for x
    x = 554,332,603,790.68/840,497.78
  6. Step 6: Final answer
    x = 659,528.93

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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.