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Finding the Fourth Proportional to 528,069.92, 728,775.04 and 301,710.56

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Solution

The fourth proportional to 528,069.92, 728,775.04 and 301,710.56 is: 416,382.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,069.92 : 728,775.04 = 301,710.56 : x
  2. Step 2: Convert to fraction form
    528,069.92/728,775.04 = 301,710.56/x
  3. Step 3: Cross multiply
    528,069.92x = 728,775.04 × 301,710.56
  4. Step 4: Simplify right side
    528,069.92x = 219,879,125,432.42
  5. Step 5: Solve for x
    x = 219,879,125,432.42/528,069.92
  6. Step 6: Final answer
    x = 416,382.60

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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.