Home / 990,981.81-1,367,556.21-538,272.81

Finding the Fourth Proportional to 990,981.81, 1,367,556.21 and 538,272.81

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Solution

The fourth proportional to 990,981.81, 1,367,556.21 and 538,272.81 is: 742,817.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,981.81 : 1,367,556.21 = 538,272.81 : x
  2. Step 2: Convert to fraction form
    990,981.81/1,367,556.21 = 538,272.81/x
  3. Step 3: Cross multiply
    990,981.81x = 1,367,556.21 × 538,272.81
  4. Step 4: Simplify right side
    990,981.81x = 736,118,323,989.65
  5. Step 5: Solve for x
    x = 736,118,323,989.65/990,981.81
  6. Step 6: Final answer
    x = 742,817.19

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.