Home / 673,019.75-928,734.45-401,081.42

Finding the Fourth Proportional to 673,019.75, 928,734.45 and 401,081.42

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Solution

The fourth proportional to 673,019.75, 928,734.45 and 401,081.42 is: 553,472.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,019.75 : 928,734.45 = 401,081.42 : x
  2. Step 2: Convert to fraction form
    673,019.75/928,734.45 = 401,081.42/x
  3. Step 3: Cross multiply
    673,019.75x = 928,734.45 × 401,081.42
  4. Step 4: Simplify right side
    673,019.75x = 372,498,132,008.92
  5. Step 5: Solve for x
    x = 372,498,132,008.92/673,019.75
  6. Step 6: Final answer
    x = 553,472.81

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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.