Home / 1,089,741.40-1,503,819.68-630,875.39

Finding the Fourth Proportional to 1,089,741.40, 1,503,819.68 and 630,875.39

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Solution

The fourth proportional to 1,089,741.40, 1,503,819.68 and 630,875.39 is: 870,594.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,089,741.40 : 1,503,819.68 = 630,875.39 : x
  2. Step 2: Convert to fraction form
    1,089,741.40/1,503,819.68 = 630,875.39/x
  3. Step 3: Cross multiply
    1,089,741.40x = 1,503,819.68 × 630,875.39
  4. Step 4: Simplify right side
    1,089,741.40x = 948,722,816,436.20
  5. Step 5: Solve for x
    x = 948,722,816,436.20/1,089,741.40
  6. Step 6: Final answer
    x = 870,594.45

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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.