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Finding the Fourth Proportional to 418,368.63, 627,547.48 and 102,828.27

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Solution

The fourth proportional to 418,368.63, 627,547.48 and 102,828.27 is: 154,241.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,368.63 : 627,547.48 = 102,828.27 : x
  2. Step 2: Convert to fraction form
    418,368.63/627,547.48 = 102,828.27/x
  3. Step 3: Cross multiply
    418,368.63x = 627,547.48 × 102,828.27
  4. Step 4: Simplify right side
    418,368.63x = 64,529,621,711.26
  5. Step 5: Solve for x
    x = 64,529,621,711.26/418,368.63
  6. Step 6: Final answer
    x = 154,241.06

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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.