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Finding the Fourth Proportional to 644,489.94, 965,262.26 and 307,766.46

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Solution

The fourth proportional to 644,489.94, 965,262.26 and 307,766.46 is: 460,946.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,489.94 : 965,262.26 = 307,766.46 : x
  2. Step 2: Convert to fraction form
    644,489.94/965,262.26 = 307,766.46/x
  3. Step 3: Cross multiply
    644,489.94x = 965,262.26 × 307,766.46
  4. Step 4: Simplify right side
    644,489.94x = 297,075,348,731.80
  5. Step 5: Solve for x
    x = 297,075,348,731.80/644,489.94
  6. Step 6: Final answer
    x = 460,946.45

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1.5x scale

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.