Home / 1,298,769.80-1,948,461.90-412,305.80

Finding the Fourth Proportional to 1,298,769.80, 1,948,461.90 and 412,305.80

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Solution

The fourth proportional to 1,298,769.80, 1,948,461.90 and 412,305.80 is: 618,556.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,769.80 : 1,948,461.90 = 412,305.80 : x
  2. Step 2: Convert to fraction form
    1,298,769.80/1,948,461.90 = 412,305.80/x
  3. Step 3: Cross multiply
    1,298,769.80x = 1,948,461.90 × 412,305.80
  4. Step 4: Simplify right side
    1,298,769.80x = 803,362,142,449.02
  5. Step 5: Solve for x
    x = 803,362,142,449.02/1,298,769.80
  6. Step 6: Final answer
    x = 618,556.22

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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.