Home / 1,021,047.12-1,531,571.04-459,425.52

Finding the Fourth Proportional to 1,021,047.12, 1,531,571.04 and 459,425.52

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Solution

The fourth proportional to 1,021,047.12, 1,531,571.04 and 459,425.52 is: 689,138.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,047.12 : 1,531,571.04 = 459,425.52 : x
  2. Step 2: Convert to fraction form
    1,021,047.12/1,531,571.04 = 459,425.52/x
  3. Step 3: Cross multiply
    1,021,047.12x = 1,531,571.04 × 459,425.52
  4. Step 4: Simplify right side
    1,021,047.12x = 703,642,821,468.94
  5. Step 5: Solve for x
    x = 703,642,821,468.94/1,021,047.12
  6. Step 6: Final answer
    x = 689,138.44

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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.