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Finding the Fourth Proportional to 528,072.92, 728,779.18 and 301,713.56

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Solution

The fourth proportional to 528,072.92, 728,779.18 and 301,713.56 is: 416,386.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,072.92 : 728,779.18 = 301,713.56 : x
  2. Step 2: Convert to fraction form
    528,072.92/728,779.18 = 301,713.56/x
  3. Step 3: Cross multiply
    528,072.92x = 728,779.18 × 301,713.56
  4. Step 4: Simplify right side
    528,072.92x = 219,882,560,851.68
  5. Step 5: Solve for x
    x = 219,882,560,851.68/528,072.92
  6. Step 6: Final answer
    x = 416,386.74

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1.5x scale

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.