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Finding the Fourth Proportional to 508,378.74, 761,365.59 and 441,455.32

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Solution

The fourth proportional to 508,378.74, 761,365.59 and 441,455.32 is: 661,138.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,378.74 : 761,365.59 = 441,455.32 : x
  2. Step 2: Convert to fraction form
    508,378.74/761,365.59 = 441,455.32/x
  3. Step 3: Cross multiply
    508,378.74x = 761,365.59 × 441,455.32
  4. Step 4: Simplify right side
    508,378.74x = 336,108,890,170.44
  5. Step 5: Solve for x
    x = 336,108,890,170.44/508,378.74
  6. Step 6: Final answer
    x = 661,138.76

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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.