Home / 627,460.32-865,894.50-340,979.76

Finding the Fourth Proportional to 627,460.32, 865,894.50 and 340,979.76

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Solution

The fourth proportional to 627,460.32, 865,894.50 and 340,979.76 is: 470,551.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,460.32 : 865,894.50 = 340,979.76 : x
  2. Step 2: Convert to fraction form
    627,460.32/865,894.50 = 340,979.76/x
  3. Step 3: Cross multiply
    627,460.32x = 865,894.50 × 340,979.76
  4. Step 4: Simplify right side
    627,460.32x = 295,252,498,795.32
  5. Step 5: Solve for x
    x = 295,252,498,795.32/627,460.32
  6. Step 6: Final answer
    x = 470,551.67

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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.