Home / 1,298,107.80-1,946,816.10-399,547.80

Finding the Fourth Proportional to 1,298,107.80, 1,946,816.10 and 399,547.80

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Solution

The fourth proportional to 1,298,107.80, 1,946,816.10 and 399,547.80 is: 599,215.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,107.80 : 1,946,816.10 = 399,547.80 : x
  2. Step 2: Convert to fraction form
    1,298,107.80/1,946,816.10 = 399,547.80/x
  3. Step 3: Cross multiply
    1,298,107.80x = 1,946,816.10 × 399,547.80
  4. Step 4: Simplify right side
    1,298,107.80x = 777,846,089,759.58
  5. Step 5: Solve for x
    x = 777,846,089,759.58/1,298,107.80
  6. Step 6: Final answer
    x = 599,215.33

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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.