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Finding the Fourth Proportional to 556,958.40, 768,600 and 302,307.36

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Solution

The fourth proportional to 556,958.40, 768,600 and 302,307.36 is: 417,182.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,958.40 : 768,600 = 302,307.36 : x
  2. Step 2: Convert to fraction form
    556,958.40/768,600 = 302,307.36/x
  3. Step 3: Cross multiply
    556,958.40x = 768,600 × 302,307.36
  4. Step 4: Simplify right side
    556,958.40x = 232,353,436,896
  5. Step 5: Solve for x
    x = 232,353,436,896/556,958.40
  6. Step 6: Final answer
    x = 417,182.75

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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.