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Finding the Fourth Proportional to 627,907.60, 941,818.20 and 201,437.20

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Solution

The fourth proportional to 627,907.60, 941,818.20 and 201,437.20 is: 302,141.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,907.60 : 941,818.20 = 201,437.20 : x
  2. Step 2: Convert to fraction form
    627,907.60/941,818.20 = 201,437.20/x
  3. Step 3: Cross multiply
    627,907.60x = 941,818.20 × 201,437.20
  4. Step 4: Simplify right side
    627,907.60x = 189,717,221,117.04
  5. Step 5: Solve for x
    x = 189,717,221,117.04/627,907.60
  6. Step 6: Final answer
    x = 302,141.94

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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.