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Finding the Fourth Proportional to 554,626.50, 765,384.84 and 299,977.62

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Solution

The fourth proportional to 554,626.50, 765,384.84 and 299,977.62 is: 413,969.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,626.50 : 765,384.84 = 299,977.62 : x
  2. Step 2: Convert to fraction form
    554,626.50/765,384.84 = 299,977.62/x
  3. Step 3: Cross multiply
    554,626.50x = 765,384.84 × 299,977.62
  4. Step 4: Simplify right side
    554,626.50x = 229,598,322,687.28
  5. Step 5: Solve for x
    x = 229,598,322,687.28/554,626.50
  6. Step 6: Final answer
    x = 413,969.26

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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.