Home / 876,852.80-1,315,279.20-699,705.80

Finding the Fourth Proportional to 876,852.80, 1,315,279.20 and 699,705.80

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Solution

The fourth proportional to 876,852.80, 1,315,279.20 and 699,705.80 is: 1,049,558.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,852.80 : 1,315,279.20 = 699,705.80 : x
  2. Step 2: Convert to fraction form
    876,852.80/1,315,279.20 = 699,705.80/x
  3. Step 3: Cross multiply
    876,852.80x = 1,315,279.20 × 699,705.80
  4. Step 4: Simplify right side
    876,852.80x = 920,308,484,859.36
  5. Step 5: Solve for x
    x = 920,308,484,859.36/876,852.80
  6. Step 6: Final answer
    x = 1,049,558.70

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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.