Home / 851,078.61-1,174,474.49-469,140.93

Finding the Fourth Proportional to 851,078.61, 1,174,474.49 and 469,140.93

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Solution

The fourth proportional to 851,078.61, 1,174,474.49 and 469,140.93 is: 647,406.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,078.61 : 1,174,474.49 = 469,140.93 : x
  2. Step 2: Convert to fraction form
    851,078.61/1,174,474.49 = 469,140.93/x
  3. Step 3: Cross multiply
    851,078.61x = 1,174,474.49 × 469,140.93
  4. Step 4: Simplify right side
    851,078.61x = 550,994,052,154.17
  5. Step 5: Solve for x
    x = 550,994,052,154.17/851,078.61
  6. Step 6: Final answer
    x = 647,406.77

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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.