Home / 985,439.72-1,359,804.84-727,453.64

Finding the Fourth Proportional to 985,439.72, 1,359,804.84 and 727,453.64

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Solution

The fourth proportional to 985,439.72, 1,359,804.84 and 727,453.64 is: 1,003,810.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,439.72 : 1,359,804.84 = 727,453.64 : x
  2. Step 2: Convert to fraction form
    985,439.72/1,359,804.84 = 727,453.64/x
  3. Step 3: Cross multiply
    985,439.72x = 1,359,804.84 × 727,453.64
  4. Step 4: Simplify right side
    985,439.72x = 989,194,980,547.62
  5. Step 5: Solve for x
    x = 989,194,980,547.62/985,439.72
  6. Step 6: Final answer
    x = 1,003,810.75

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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.