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Finding the Fourth Proportional to 624,690.40, 937,035.60 and 287,730.40

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Solution

The fourth proportional to 624,690.40, 937,035.60 and 287,730.40 is: 431,595.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,690.40 : 937,035.60 = 287,730.40 : x
  2. Step 2: Convert to fraction form
    624,690.40/937,035.60 = 287,730.40/x
  3. Step 3: Cross multiply
    624,690.40x = 937,035.60 × 287,730.40
  4. Step 4: Simplify right side
    624,690.40x = 269,613,628,002.24
  5. Step 5: Solve for x
    x = 269,613,628,002.24/624,690.40
  6. Step 6: Final answer
    x = 431,595.60

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Similar ratio
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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.