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Finding the Fourth Proportional to 554,473.20, 831,709.80 and 302,530.80

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Solution

The fourth proportional to 554,473.20, 831,709.80 and 302,530.80 is: 453,796.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,473.20 : 831,709.80 = 302,530.80 : x
  2. Step 2: Convert to fraction form
    554,473.20/831,709.80 = 302,530.80/x
  3. Step 3: Cross multiply
    554,473.20x = 831,709.80 × 302,530.80
  4. Step 4: Simplify right side
    554,473.20x = 251,617,831,161.84
  5. Step 5: Solve for x
    x = 251,617,831,161.84/554,473.20
  6. Step 6: Final answer
    x = 453,796.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.