Home / 727,640.64-1,089,445.68-371,888.64

Finding the Fourth Proportional to 727,640.64, 1,089,445.68 and 371,888.64

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Solution

The fourth proportional to 727,640.64, 1,089,445.68 and 371,888.64 is: 556,802.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,640.64 : 1,089,445.68 = 371,888.64 : x
  2. Step 2: Convert to fraction form
    727,640.64/1,089,445.68 = 371,888.64/x
  3. Step 3: Cross multiply
    727,640.64x = 1,089,445.68 × 371,888.64
  4. Step 4: Simplify right side
    727,640.64x = 405,152,472,289.08
  5. Step 5: Solve for x
    x = 405,152,472,289.08/727,640.64
  6. Step 6: Final answer
    x = 556,802.97

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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.