Home / 912,639.69-1,367,994.22-343,774.67

Finding the Fourth Proportional to 912,639.69, 1,367,994.22 and 343,774.67

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Solution

The fourth proportional to 912,639.69, 1,367,994.22 and 343,774.67 is: 515,298.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,639.69 : 1,367,994.22 = 343,774.67 : x
  2. Step 2: Convert to fraction form
    912,639.69/1,367,994.22 = 343,774.67/x
  3. Step 3: Cross multiply
    912,639.69x = 1,367,994.22 × 343,774.67
  4. Step 4: Simplify right side
    912,639.69x = 470,281,753,843.00
  5. Step 5: Solve for x
    x = 470,281,753,843.00/912,639.69
  6. Step 6: Final answer
    x = 515,298.38

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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.