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Finding the Fourth Proportional to 967,490.78, 1,334,672.79 and 833,121.50

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Solution

The fourth proportional to 967,490.78, 1,334,672.79 and 833,121.50 is: 1,149,307.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    967,490.78 : 1,334,672.79 = 833,121.50 : x
  2. Step 2: Convert to fraction form
    967,490.78/1,334,672.79 = 833,121.50/x
  3. Step 3: Cross multiply
    967,490.78x = 1,334,672.79 × 833,121.50
  4. Step 4: Simplify right side
    967,490.78x = 1,111,944,596,813.99
  5. Step 5: Solve for x
    x = 1,111,944,596,813.99/967,490.78
  6. Step 6: Final answer
    x = 1,149,307.69

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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.