Home / 830,147.20-1,245,220.80-530,965.60

Finding the Fourth Proportional to 830,147.20, 1,245,220.80 and 530,965.60

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Solution

The fourth proportional to 830,147.20, 1,245,220.80 and 530,965.60 is: 796,448.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,147.20 : 1,245,220.80 = 530,965.60 : x
  2. Step 2: Convert to fraction form
    830,147.20/1,245,220.80 = 530,965.60/x
  3. Step 3: Cross multiply
    830,147.20x = 1,245,220.80 × 530,965.60
  4. Step 4: Simplify right side
    830,147.20x = 661,169,409,204.48
  5. Step 5: Solve for x
    x = 661,169,409,204.48/830,147.20
  6. Step 6: Final answer
    x = 796,448.40

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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.