Home / 1,308,489.84-1,961,571.52-509,586.80

Finding the Fourth Proportional to 1,308,489.84, 1,961,571.52 and 509,586.80

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Solution

The fourth proportional to 1,308,489.84, 1,961,571.52 and 509,586.80 is: 763,927.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,308,489.84 : 1,961,571.52 = 509,586.80 : x
  2. Step 2: Convert to fraction form
    1,308,489.84/1,961,571.52 = 509,586.80/x
  3. Step 3: Cross multiply
    1,308,489.84x = 1,961,571.52 × 509,586.80
  4. Step 4: Simplify right side
    1,308,489.84x = 999,590,953,847.94
  5. Step 5: Solve for x
    x = 999,590,953,847.94/1,308,489.84
  6. Step 6: Final answer
    x = 763,927.18

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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.