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Finding the Fourth Proportional to 682,813.79, 942,283.10 and 376,890.24

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Solution

The fourth proportional to 682,813.79, 942,283.10 and 376,890.24 is: 520,108.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,813.79 : 942,283.10 = 376,890.24 : x
  2. Step 2: Convert to fraction form
    682,813.79/942,283.10 = 376,890.24/x
  3. Step 3: Cross multiply
    682,813.79x = 942,283.10 × 376,890.24
  4. Step 4: Simplify right side
    682,813.79x = 355,137,308,182.73
  5. Step 5: Solve for x
    x = 355,137,308,182.73/682,813.79
  6. Step 6: Final answer
    x = 520,108.58

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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.