Home / 864,237.60-1,296,356.40-303,328.80

Finding the Fourth Proportional to 864,237.60, 1,296,356.40 and 303,328.80

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Solution

The fourth proportional to 864,237.60, 1,296,356.40 and 303,328.80 is: 454,993.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,237.60 : 1,296,356.40 = 303,328.80 : x
  2. Step 2: Convert to fraction form
    864,237.60/1,296,356.40 = 303,328.80/x
  3. Step 3: Cross multiply
    864,237.60x = 1,296,356.40 × 303,328.80
  4. Step 4: Simplify right side
    864,237.60x = 393,222,231,184.32
  5. Step 5: Solve for x
    x = 393,222,231,184.32/864,237.60
  6. Step 6: Final answer
    x = 454,993.20

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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.