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Finding the Fourth Proportional to 556,355.54, 767,785.28 and 314,673.82

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Solution

The fourth proportional to 556,355.54, 767,785.28 and 314,673.82 is: 434,258.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,355.54 : 767,785.28 = 314,673.82 : x
  2. Step 2: Convert to fraction form
    556,355.54/767,785.28 = 314,673.82/x
  3. Step 3: Cross multiply
    556,355.54x = 767,785.28 × 314,673.82
  4. Step 4: Simplify right side
    556,355.54x = 241,601,926,997.37
  5. Step 5: Solve for x
    x = 241,601,926,997.37/556,355.54
  6. Step 6: Final answer
    x = 434,258.15

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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.