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Finding the Fourth Proportional to 540,805.87, 746,411.94 and 347,455.28

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Solution

The fourth proportional to 540,805.87, 746,411.94 and 347,455.28 is: 479,552.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,805.87 : 746,411.94 = 347,455.28 : x
  2. Step 2: Convert to fraction form
    540,805.87/746,411.94 = 347,455.28/x
  3. Step 3: Cross multiply
    540,805.87x = 746,411.94 × 347,455.28
  4. Step 4: Simplify right side
    540,805.87x = 259,344,772,173.83
  5. Step 5: Solve for x
    x = 259,344,772,173.83/540,805.87
  6. Step 6: Final answer
    x = 479,552.44

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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.