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Finding the Fourth Proportional to 627,102, 865,416.56 and 340,622.01

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Solution

The fourth proportional to 627,102, 865,416.56 and 340,622.01 is: 470,066.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,102 : 865,416.56 = 340,622.01 : x
  2. Step 2: Convert to fraction form
    627,102/865,416.56 = 340,622.01/x
  3. Step 3: Cross multiply
    627,102x = 865,416.56 × 340,622.01
  4. Step 4: Simplify right side
    627,102x = 294,779,926,451.38
  5. Step 5: Solve for x
    x = 294,779,926,451.38/627,102
  6. Step 6: Final answer
    x = 470,066.95

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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.