Home / 1,008,051.60-1,515,187.80-989,389.20

Finding the Fourth Proportional to 1,008,051.60, 1,515,187.80 and 989,389.20

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Solution

The fourth proportional to 1,008,051.60, 1,515,187.80 and 989,389.20 is: 1,487,136.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,051.60 : 1,515,187.80 = 989,389.20 : x
  2. Step 2: Convert to fraction form
    1,008,051.60/1,515,187.80 = 989,389.20/x
  3. Step 3: Cross multiply
    1,008,051.60x = 1,515,187.80 × 989,389.20
  4. Step 4: Simplify right side
    1,008,051.60x = 1,499,110,445,291.76
  5. Step 5: Solve for x
    x = 1,499,110,445,291.76/1,008,051.60
  6. Step 6: Final answer
    x = 1,487,136.62

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.