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Finding the Fourth Proportional to 610,621.16, 843,075.06 and 381,527.96

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Solution

The fourth proportional to 610,621.16, 843,075.06 and 381,527.96 is: 526,769.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,621.16 : 843,075.06 = 381,527.96 : x
  2. Step 2: Convert to fraction form
    610,621.16/843,075.06 = 381,527.96/x
  3. Step 3: Cross multiply
    610,621.16x = 843,075.06 × 381,527.96
  4. Step 4: Simplify right side
    610,621.16x = 321,656,707,768.68
  5. Step 5: Solve for x
    x = 321,656,707,768.68/610,621.16
  6. Step 6: Final answer
    x = 526,769.67

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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.