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Finding the Fourth Proportional to 682,977.08, 942,509.56 and 377,053.95

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Solution

The fourth proportional to 682,977.08, 942,509.56 and 377,053.95 is: 520,335.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,977.08 : 942,509.56 = 377,053.95 : x
  2. Step 2: Convert to fraction form
    682,977.08/942,509.56 = 377,053.95/x
  3. Step 3: Cross multiply
    682,977.08x = 942,509.56 × 377,053.95
  4. Step 4: Simplify right side
    682,977.08x = 355,376,956,671.30
  5. Step 5: Solve for x
    x = 355,376,956,671.30/682,977.08
  6. Step 6: Final answer
    x = 520,335.12

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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.