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Finding the Fourth Proportional to 540,703.44, 746,130.84 and 298,989.20

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Solution

The fourth proportional to 540,703.44, 746,130.84 and 298,989.20 is: 412,583.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,703.44 : 746,130.84 = 298,989.20 : x
  2. Step 2: Convert to fraction form
    540,703.44/746,130.84 = 298,989.20/x
  3. Step 3: Cross multiply
    540,703.44x = 746,130.84 × 298,989.20
  4. Step 4: Simplify right side
    540,703.44x = 223,085,062,946.93
  5. Step 5: Solve for x
    x = 223,085,062,946.93/540,703.44
  6. Step 6: Final answer
    x = 412,583.03

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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.