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Finding the Fourth Proportional to 553,693.80, 831,462.30 and 304,554.60

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Solution

The fourth proportional to 553,693.80, 831,462.30 and 304,554.60 is: 457,338.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,693.80 : 831,462.30 = 304,554.60 : x
  2. Step 2: Convert to fraction form
    553,693.80/831,462.30 = 304,554.60/x
  3. Step 3: Cross multiply
    553,693.80x = 831,462.30 × 304,554.60
  4. Step 4: Simplify right side
    553,693.80x = 253,225,668,191.58
  5. Step 5: Solve for x
    x = 253,225,668,191.58/553,693.80
  6. Step 6: Final answer
    x = 457,338.82

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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.