Home / 1,298,815.36-1,948,405.92-400,329.52

Finding the Fourth Proportional to 1,298,815.36, 1,948,405.92 and 400,329.52

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Solution

The fourth proportional to 1,298,815.36, 1,948,405.92 and 400,329.52 is: 600,550.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,815.36 : 1,948,405.92 = 400,329.52 : x
  2. Step 2: Convert to fraction form
    1,298,815.36/1,948,405.92 = 400,329.52/x
  3. Step 3: Cross multiply
    1,298,815.36x = 1,948,405.92 × 400,329.52
  4. Step 4: Simplify right side
    1,298,815.36x = 780,004,406,718.76
  5. Step 5: Solve for x
    x = 780,004,406,718.76/1,298,815.36
  6. Step 6: Final answer
    x = 600,550.65

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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.