Home / 809,941.32-1,117,730.82-470,409.54

Finding the Fourth Proportional to 809,941.32, 1,117,730.82 and 470,409.54

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Solution

The fourth proportional to 809,941.32, 1,117,730.82 and 470,409.54 is: 649,172.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,941.32 : 1,117,730.82 = 470,409.54 : x
  2. Step 2: Convert to fraction form
    809,941.32/1,117,730.82 = 470,409.54/x
  3. Step 3: Cross multiply
    809,941.32x = 1,117,730.82 × 470,409.54
  4. Step 4: Simplify right side
    809,941.32x = 525,791,240,880.02
  5. Step 5: Solve for x
    x = 525,791,240,880.02/809,941.32
  6. Step 6: Final answer
    x = 649,172.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.