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Finding the Fourth Proportional to 453,122, 678,749.76 and 265,681.52

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Solution

The fourth proportional to 453,122, 678,749.76 and 265,681.52 is: 397,975.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,122 : 678,749.76 = 265,681.52 : x
  2. Step 2: Convert to fraction form
    453,122/678,749.76 = 265,681.52/x
  3. Step 3: Cross multiply
    453,122x = 678,749.76 × 265,681.52
  4. Step 4: Simplify right side
    453,122x = 180,331,267,936.44
  5. Step 5: Solve for x
    x = 180,331,267,936.44/453,122
  6. Step 6: Final answer
    x = 397,975.09

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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.