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Finding the Fourth Proportional to 455,038.52, 682,026.26 and 342,356.67

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Solution

The fourth proportional to 455,038.52, 682,026.26 and 342,356.67 is: 513,135.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,038.52 : 682,026.26 = 342,356.67 : x
  2. Step 2: Convert to fraction form
    455,038.52/682,026.26 = 342,356.67/x
  3. Step 3: Cross multiply
    455,038.52x = 682,026.26 × 342,356.67
  4. Step 4: Simplify right side
    455,038.52x = 233,496,237,514.37
  5. Step 5: Solve for x
    x = 233,496,237,514.37/455,038.52
  6. Step 6: Final answer
    x = 513,135.11

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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.