Home / 642,533.94-963,922.59-258,312.51

Finding the Fourth Proportional to 642,533.94, 963,922.59 and 258,312.51

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Solution

The fourth proportional to 642,533.94, 963,922.59 and 258,312.51 is: 387,517.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,533.94 : 963,922.59 = 258,312.51 : x
  2. Step 2: Convert to fraction form
    642,533.94/963,922.59 = 258,312.51/x
  3. Step 3: Cross multiply
    642,533.94x = 963,922.59 × 258,312.51
  4. Step 4: Simplify right side
    642,533.94x = 248,993,263,668.60
  5. Step 5: Solve for x
    x = 248,993,263,668.60/642,533.94
  6. Step 6: Final answer
    x = 387,517.68

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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.