Home / 1,089,218.51-1,502,873.48-630,321.51

Finding the Fourth Proportional to 1,089,218.51, 1,502,873.48 and 630,321.51

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Solution

The fourth proportional to 1,089,218.51, 1,502,873.48 and 630,321.51 is: 869,700.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,089,218.51 : 1,502,873.48 = 630,321.51 : x
  2. Step 2: Convert to fraction form
    1,089,218.51/1,502,873.48 = 630,321.51/x
  3. Step 3: Cross multiply
    1,089,218.51x = 1,502,873.48 × 630,321.51
  4. Step 4: Simplify right side
    1,089,218.51x = 947,293,481,252.56
  5. Step 5: Solve for x
    x = 947,293,481,252.56/1,089,218.51
  6. Step 6: Final answer
    x = 869,700.13

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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.