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Finding the Fourth Proportional to 554,485.26, 765,308.25 and 350,406.30

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Solution

The fourth proportional to 554,485.26, 765,308.25 and 350,406.30 is: 483,635.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,485.26 : 765,308.25 = 350,406.30 : x
  2. Step 2: Convert to fraction form
    554,485.26/765,308.25 = 350,406.30/x
  3. Step 3: Cross multiply
    554,485.26x = 765,308.25 × 350,406.30
  4. Step 4: Simplify right side
    554,485.26x = 268,168,832,241.98
  5. Step 5: Solve for x
    x = 268,168,832,241.98/554,485.26
  6. Step 6: Final answer
    x = 483,635.64

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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.