Home / 853,976.12-1,178,451.65-509,868.07

Finding the Fourth Proportional to 853,976.12, 1,178,451.65 and 509,868.07

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Solution

The fourth proportional to 853,976.12, 1,178,451.65 and 509,868.07 is: 703,596.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,976.12 : 1,178,451.65 = 509,868.07 : x
  2. Step 2: Convert to fraction form
    853,976.12/1,178,451.65 = 509,868.07/x
  3. Step 3: Cross multiply
    853,976.12x = 1,178,451.65 × 509,868.07
  4. Step 4: Simplify right side
    853,976.12x = 600,854,868,373.82
  5. Step 5: Solve for x
    x = 600,854,868,373.82/853,976.12
  6. Step 6: Final answer
    x = 703,596.80

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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.