Home / 830,429.80-1,245,644.70-756,946.60

Finding the Fourth Proportional to 830,429.80, 1,245,644.70 and 756,946.60

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Solution

The fourth proportional to 830,429.80, 1,245,644.70 and 756,946.60 is: 1,135,419.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,429.80 : 1,245,644.70 = 756,946.60 : x
  2. Step 2: Convert to fraction form
    830,429.80/1,245,644.70 = 756,946.60/x
  3. Step 3: Cross multiply
    830,429.80x = 1,245,644.70 × 756,946.60
  4. Step 4: Simplify right side
    830,429.80x = 942,886,520,473.02
  5. Step 5: Solve for x
    x = 942,886,520,473.02/830,429.80
  6. Step 6: Final answer
    x = 1,135,419.90

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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.