Home / 627,078.53-865,370.85-340,603.40

Finding the Fourth Proportional to 627,078.53, 865,370.85 and 340,603.40

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Solution

The fourth proportional to 627,078.53, 865,370.85 and 340,603.40 is: 470,034.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,078.53 : 865,370.85 = 340,603.40 : x
  2. Step 2: Convert to fraction form
    627,078.53/865,370.85 = 340,603.40/x
  3. Step 3: Cross multiply
    627,078.53x = 865,370.85 × 340,603.40
  4. Step 4: Simplify right side
    627,078.53x = 294,748,253,770.89
  5. Step 5: Solve for x
    x = 294,748,253,770.89/627,078.53
  6. Step 6: Final answer
    x = 470,034.04

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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.