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Finding the Fourth Proportional to 507,270.38, 700,033.32 and 280,915.88

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Solution

The fourth proportional to 507,270.38, 700,033.32 and 280,915.88 is: 387,664.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,270.38 : 700,033.32 = 280,915.88 : x
  2. Step 2: Convert to fraction form
    507,270.38/700,033.32 = 280,915.88/x
  3. Step 3: Cross multiply
    507,270.38x = 700,033.32 × 280,915.88
  4. Step 4: Simplify right side
    507,270.38x = 196,650,472,616.96
  5. Step 5: Solve for x
    x = 196,650,472,616.96/507,270.38
  6. Step 6: Final answer
    x = 387,664.02

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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.