Home / 723,799.80-998,763.06-401,429.10

Finding the Fourth Proportional to 723,799.80, 998,763.06 and 401,429.10

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Solution

The fourth proportional to 723,799.80, 998,763.06 and 401,429.10 is: 553,927.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,799.80 : 998,763.06 = 401,429.10 : x
  2. Step 2: Convert to fraction form
    723,799.80/998,763.06 = 401,429.10/x
  3. Step 3: Cross multiply
    723,799.80x = 998,763.06 × 401,429.10
  4. Step 4: Simplify right side
    723,799.80x = 400,932,556,289.05
  5. Step 5: Solve for x
    x = 400,932,556,289.05/723,799.80
  6. Step 6: Final answer
    x = 553,927.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.