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Finding the Fourth Proportional to 528,025.96, 728,573.70 and 313,356.52

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Solution

The fourth proportional to 528,025.96, 728,573.70 and 313,356.52 is: 432,371.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,025.96 : 728,573.70 = 313,356.52 : x
  2. Step 2: Convert to fraction form
    528,025.96/728,573.70 = 313,356.52/x
  3. Step 3: Cross multiply
    528,025.96x = 728,573.70 × 313,356.52
  4. Step 4: Simplify right side
    528,025.96x = 228,303,319,195.52
  5. Step 5: Solve for x
    x = 228,303,319,195.52/528,025.96
  6. Step 6: Final answer
    x = 432,371.39

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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.