Home / 830,613.60-1,245,920.40-825,364.80

Finding the Fourth Proportional to 830,613.60, 1,245,920.40 and 825,364.80

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Solution

The fourth proportional to 830,613.60, 1,245,920.40 and 825,364.80 is: 1,238,047.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,613.60 : 1,245,920.40 = 825,364.80 : x
  2. Step 2: Convert to fraction form
    830,613.60/1,245,920.40 = 825,364.80/x
  3. Step 3: Cross multiply
    830,613.60x = 1,245,920.40 × 825,364.80
  4. Step 4: Simplify right side
    830,613.60x = 1,028,338,841,761.92
  5. Step 5: Solve for x
    x = 1,028,338,841,761.92/830,613.60
  6. Step 6: Final answer
    x = 1,238,047.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.