Home / 1,145,311.09-1,580,668.71-661,880.18

Finding the Fourth Proportional to 1,145,311.09, 1,580,668.71 and 661,880.18

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Solution

The fourth proportional to 1,145,311.09, 1,580,668.71 and 661,880.18 is: 913,475.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,311.09 : 1,580,668.71 = 661,880.18 : x
  2. Step 2: Convert to fraction form
    1,145,311.09/1,580,668.71 = 661,880.18/x
  3. Step 3: Cross multiply
    1,145,311.09x = 1,580,668.71 × 661,880.18
  4. Step 4: Simplify right side
    1,145,311.09x = 1,046,213,290,295.17
  5. Step 5: Solve for x
    x = 1,046,213,290,295.17/1,145,311.09
  6. Step 6: Final answer
    x = 913,475.21

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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.