Home / 528,795.58-729,746.39-287,077.97

Finding the Fourth Proportional to 528,795.58, 729,746.39 and 287,077.97

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Solution

The fourth proportional to 528,795.58, 729,746.39 and 287,077.97 is: 396,172.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,795.58 : 729,746.39 = 287,077.97 : x
  2. Step 2: Convert to fraction form
    528,795.58/729,746.39 = 287,077.97/x
  3. Step 3: Cross multiply
    528,795.58x = 729,746.39 × 287,077.97
  4. Step 4: Simplify right side
    528,795.58x = 209,494,107,171.91
  5. Step 5: Solve for x
    x = 209,494,107,171.91/528,795.58
  6. Step 6: Final answer
    x = 396,172.20

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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.