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Finding the Fourth Proportional to 507,489.82, 700,358.73 and 281,120.74

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Solution

The fourth proportional to 507,489.82, 700,358.73 and 281,120.74 is: 387,959.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,489.82 : 700,358.73 = 281,120.74 : x
  2. Step 2: Convert to fraction form
    507,489.82/700,358.73 = 281,120.74/x
  3. Step 3: Cross multiply
    507,489.82x = 700,358.73 × 281,120.74
  4. Step 4: Simplify right side
    507,489.82x = 196,885,364,443.06
  5. Step 5: Solve for x
    x = 196,885,364,443.06/507,489.82
  6. Step 6: Final answer
    x = 387,959.24

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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.