Home / 853,871.70-1,178,455.59-825,831.66

Finding the Fourth Proportional to 853,871.70, 1,178,455.59 and 825,831.66

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Solution

The fourth proportional to 853,871.70, 1,178,455.59 and 825,831.66 is: 1,139,756.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,871.70 : 1,178,455.59 = 825,831.66 : x
  2. Step 2: Convert to fraction form
    853,871.70/1,178,455.59 = 825,831.66/x
  3. Step 3: Cross multiply
    853,871.70x = 1,178,455.59 × 825,831.66
  4. Step 4: Simplify right side
    853,871.70x = 973,205,936,125.98
  5. Step 5: Solve for x
    x = 973,205,936,125.98/853,871.70
  6. Step 6: Final answer
    x = 1,139,756.64

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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.