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Finding the Fourth Proportional to 452,586.10, 678,418.35 and 265,501.30

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Solution

The fourth proportional to 452,586.10, 678,418.35 and 265,501.30 is: 397,981.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,586.10 : 678,418.35 = 265,501.30 : x
  2. Step 2: Convert to fraction form
    452,586.10/678,418.35 = 265,501.30/x
  3. Step 3: Cross multiply
    452,586.10x = 678,418.35 × 265,501.30
  4. Step 4: Simplify right side
    452,586.10x = 180,120,953,868.86
  5. Step 5: Solve for x
    x = 180,120,953,868.86/452,586.10
  6. Step 6: Final answer
    x = 397,981.63

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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.