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Finding the Fourth Proportional to 529,069.44, 730,124.55 and 287,352.20

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Solution

The fourth proportional to 529,069.44, 730,124.55 and 287,352.20 is: 396,550.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,069.44 : 730,124.55 = 287,352.20 : x
  2. Step 2: Convert to fraction form
    529,069.44/730,124.55 = 287,352.20/x
  3. Step 3: Cross multiply
    529,069.44x = 730,124.55 × 287,352.20
  4. Step 4: Simplify right side
    529,069.44x = 209,802,895,716.51
  5. Step 5: Solve for x
    x = 209,802,895,716.51/529,069.44
  6. Step 6: Final answer
    x = 396,550.77

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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.