Home / 869,190.80-1,303,397.40-395,632.40

Finding the Fourth Proportional to 869,190.80, 1,303,397.40 and 395,632.40

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Solution

The fourth proportional to 869,190.80, 1,303,397.40 and 395,632.40 is: 593,271.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,190.80 : 1,303,397.40 = 395,632.40 : x
  2. Step 2: Convert to fraction form
    869,190.80/1,303,397.40 = 395,632.40/x
  3. Step 3: Cross multiply
    869,190.80x = 1,303,397.40 × 395,632.40
  4. Step 4: Simplify right side
    869,190.80x = 515,666,241,515.76
  5. Step 5: Solve for x
    x = 515,666,241,515.76/869,190.80
  6. Step 6: Final answer
    x = 593,271.63

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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.