Home / 1,230,290.72-1,697,802.56-720,993.60

Finding the Fourth Proportional to 1,230,290.72, 1,697,802.56 and 720,993.60

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Solution

The fourth proportional to 1,230,290.72, 1,697,802.56 and 720,993.60 is: 994,971.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,290.72 : 1,697,802.56 = 720,993.60 : x
  2. Step 2: Convert to fraction form
    1,230,290.72/1,697,802.56 = 720,993.60/x
  3. Step 3: Cross multiply
    1,230,290.72x = 1,697,802.56 × 720,993.60
  4. Step 4: Simplify right side
    1,230,290.72x = 1,224,104,779,823.62
  5. Step 5: Solve for x
    x = 1,224,104,779,823.62/1,230,290.72
  6. Step 6: Final answer
    x = 994,971.97

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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.