Home / 528,132.08-728,016-323,804.72

Finding the Fourth Proportional to 528,132.08, 728,016 and 323,804.72

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Solution

The fourth proportional to 528,132.08, 728,016 and 323,804.72 is: 446,356.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,132.08 : 728,016 = 323,804.72 : x
  2. Step 2: Convert to fraction form
    528,132.08/728,016 = 323,804.72/x
  3. Step 3: Cross multiply
    528,132.08x = 728,016 × 323,804.72
  4. Step 4: Simplify right side
    528,132.08x = 235,735,017,035.52
  5. Step 5: Solve for x
    x = 235,735,017,035.52/528,132.08
  6. Step 6: Final answer
    x = 446,356.18

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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.