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Finding the Fourth Proportional to 545,008.25, 751,632.80 and 381,581.03

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Solution

The fourth proportional to 545,008.25, 751,632.80 and 381,581.03 is: 526,246.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,008.25 : 751,632.80 = 381,581.03 : x
  2. Step 2: Convert to fraction form
    545,008.25/751,632.80 = 381,581.03/x
  3. Step 3: Cross multiply
    545,008.25x = 751,632.80 × 381,581.03
  4. Step 4: Simplify right side
    545,008.25x = 286,808,812,339.72
  5. Step 5: Solve for x
    x = 286,808,812,339.72/545,008.25
  6. Step 6: Final answer
    x = 526,246.74

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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.