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Finding the Fourth Proportional to 418,467.60, 627,701.40 and 292,496.40

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Solution

The fourth proportional to 418,467.60, 627,701.40 and 292,496.40 is: 438,744.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,467.60 : 627,701.40 = 292,496.40 : x
  2. Step 2: Convert to fraction form
    418,467.60/627,701.40 = 292,496.40/x
  3. Step 3: Cross multiply
    418,467.60x = 627,701.40 × 292,496.40
  4. Step 4: Simplify right side
    418,467.60x = 183,600,399,774.96
  5. Step 5: Solve for x
    x = 183,600,399,774.96/418,467.60
  6. Step 6: Final answer
    x = 438,744.60

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1.5x scale

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.