Home / 627,045.35-865,321.92-340,565.67

Finding the Fourth Proportional to 627,045.35, 865,321.92 and 340,565.67

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Solution

The fourth proportional to 627,045.35, 865,321.92 and 340,565.67 is: 469,980.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,045.35 : 865,321.92 = 340,565.67 : x
  2. Step 2: Convert to fraction form
    627,045.35/865,321.92 = 340,565.67/x
  3. Step 3: Cross multiply
    627,045.35x = 865,321.92 × 340,565.67
  4. Step 4: Simplify right side
    627,045.35x = 294,698,939,450.49
  5. Step 5: Solve for x
    x = 294,698,939,450.49/627,045.35
  6. Step 6: Final answer
    x = 469,980.27

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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.