Home / 643,106.12-963,818.25-263,582.51

Finding the Fourth Proportional to 643,106.12, 963,818.25 and 263,582.51

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Solution

The fourth proportional to 643,106.12, 963,818.25 and 263,582.51 is: 395,029.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,106.12 : 963,818.25 = 263,582.51 : x
  2. Step 2: Convert to fraction form
    643,106.12/963,818.25 = 263,582.51/x
  3. Step 3: Cross multiply
    643,106.12x = 963,818.25 × 263,582.51
  4. Step 4: Simplify right side
    643,106.12x = 254,045,628,699.72
  5. Step 5: Solve for x
    x = 254,045,628,699.72/643,106.12
  6. Step 6: Final answer
    x = 395,029.10

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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.