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Finding the Fourth Proportional to 528,260.46, 728,556.03 and 346,833.42

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Solution

The fourth proportional to 528,260.46, 728,556.03 and 346,833.42 is: 478,339.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,260.46 : 728,556.03 = 346,833.42 : x
  2. Step 2: Convert to fraction form
    528,260.46/728,556.03 = 346,833.42/x
  3. Step 3: Cross multiply
    528,260.46x = 728,556.03 × 346,833.42
  4. Step 4: Simplify right side
    528,260.46x = 252,687,579,546.52
  5. Step 5: Solve for x
    x = 252,687,579,546.52/528,260.46
  6. Step 6: Final answer
    x = 478,339.00

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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.