Home / 868,911.60-1,303,367.40-308,002.80

Finding the Fourth Proportional to 868,911.60, 1,303,367.40 and 308,002.80

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Solution

The fourth proportional to 868,911.60, 1,303,367.40 and 308,002.80 is: 462,004.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,911.60 : 1,303,367.40 = 308,002.80 : x
  2. Step 2: Convert to fraction form
    868,911.60/1,303,367.40 = 308,002.80/x
  3. Step 3: Cross multiply
    868,911.60x = 1,303,367.40 × 308,002.80
  4. Step 4: Simplify right side
    868,911.60x = 401,440,808,628.72
  5. Step 5: Solve for x
    x = 401,440,808,628.72/868,911.60
  6. Step 6: Final answer
    x = 462,004.20

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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.