Home / 1,089,217.51-1,502,872.10-630,320.51

Finding the Fourth Proportional to 1,089,217.51, 1,502,872.10 and 630,320.51

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Solution

The fourth proportional to 1,089,217.51, 1,502,872.10 and 630,320.51 is: 869,698.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,089,217.51 : 1,502,872.10 = 630,320.51 : x
  2. Step 2: Convert to fraction form
    1,089,217.51/1,502,872.10 = 630,320.51/x
  3. Step 3: Cross multiply
    1,089,217.51x = 1,502,872.10 × 630,320.51
  4. Step 4: Simplify right side
    1,089,217.51x = 947,291,108,536.77
  5. Step 5: Solve for x
    x = 947,291,108,536.77/1,089,217.51
  6. Step 6: Final answer
    x = 869,698.75

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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.