Home / 1,509,420.80-2,265,880.80-911,057.60

Finding the Fourth Proportional to 1,509,420.80, 2,265,880.80 and 911,057.60

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Solution

The fourth proportional to 1,509,420.80, 2,265,880.80 and 911,057.60 is: 1,367,642.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,509,420.80 : 2,265,880.80 = 911,057.60 : x
  2. Step 2: Convert to fraction form
    1,509,420.80/2,265,880.80 = 911,057.60/x
  3. Step 3: Cross multiply
    1,509,420.80x = 2,265,880.80 × 911,057.60
  4. Step 4: Simplify right side
    1,509,420.80x = 2,064,347,923,534.08
  5. Step 5: Solve for x
    x = 2,064,347,923,534.08/1,509,420.80
  6. Step 6: Final answer
    x = 1,367,642.43

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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.