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Finding the Fourth Proportional to 462,627.63, 638,390.97 and 281,314.53

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Solution

The fourth proportional to 462,627.63, 638,390.97 and 281,314.53 is: 388,192.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,627.63 : 638,390.97 = 281,314.53 : x
  2. Step 2: Convert to fraction form
    462,627.63/638,390.97 = 281,314.53/x
  3. Step 3: Cross multiply
    462,627.63x = 638,390.97 × 281,314.53
  4. Step 4: Simplify right side
    462,627.63x = 179,588,655,681.79
  5. Step 5: Solve for x
    x = 179,588,655,681.79/462,627.63
  6. Step 6: Final answer
    x = 388,192.67

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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.