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Finding the Fourth Proportional to 608,041.72, 838,982.10 and 381,585.16

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Solution

The fourth proportional to 608,041.72, 838,982.10 and 381,585.16 is: 526,515.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,041.72 : 838,982.10 = 381,585.16 : x
  2. Step 2: Convert to fraction form
    608,041.72/838,982.10 = 381,585.16/x
  3. Step 3: Cross multiply
    608,041.72x = 838,982.10 × 381,585.16
  4. Step 4: Simplify right side
    608,041.72x = 320,143,118,865.64
  5. Step 5: Solve for x
    x = 320,143,118,865.64/608,041.72
  6. Step 6: Final answer
    x = 526,515.05

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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.