Home / 790,812.72-1,185,973.78-285,307.98

Finding the Fourth Proportional to 790,812.72, 1,185,973.78 and 285,307.98

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Solution

The fourth proportional to 790,812.72, 1,185,973.78 and 285,307.98 is: 427,873.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,812.72 : 1,185,973.78 = 285,307.98 : x
  2. Step 2: Convert to fraction form
    790,812.72/1,185,973.78 = 285,307.98/x
  3. Step 3: Cross multiply
    790,812.72x = 1,185,973.78 × 285,307.98
  4. Step 4: Simplify right side
    790,812.72x = 338,367,783,504.76
  5. Step 5: Solve for x
    x = 338,367,783,504.76/790,812.72
  6. Step 6: Final answer
    x = 427,873.47

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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.