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Finding the Fourth Proportional to 849,307.50, 1,274,158.08 and 288,342

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Solution

The fourth proportional to 849,307.50, 1,274,158.08 and 288,342 is: 432,579.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,307.50 : 1,274,158.08 = 288,342 : x
  2. Step 2: Convert to fraction form
    849,307.50/1,274,158.08 = 288,342/x
  3. Step 3: Cross multiply
    849,307.50x = 1,274,158.08 × 288,342
  4. Step 4: Simplify right side
    849,307.50x = 367,393,289,103.36
  5. Step 5: Solve for x
    x = 367,393,289,103.36/849,307.50
  6. Step 6: Final answer
    x = 432,579.82

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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.