Home / 1,256,134.79-1,884,203.09-309,505.50

Finding the Fourth Proportional to 1,256,134.79, 1,884,203.09 and 309,505.50

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Solution

The fourth proportional to 1,256,134.79, 1,884,203.09 and 309,505.50 is: 464,258.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,256,134.79 : 1,884,203.09 = 309,505.50 : x
  2. Step 2: Convert to fraction form
    1,256,134.79/1,884,203.09 = 309,505.50/x
  3. Step 3: Cross multiply
    1,256,134.79x = 1,884,203.09 × 309,505.50
  4. Step 4: Simplify right side
    1,256,134.79x = 583,171,217,924.47
  5. Step 5: Solve for x
    x = 583,171,217,924.47/1,256,134.79
  6. Step 6: Final answer
    x = 464,258.47

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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.