Home / 990,799.84-1,367,319.60-538,090.80

Finding the Fourth Proportional to 990,799.84, 1,367,319.60 and 538,090.80

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Solution

The fourth proportional to 990,799.84, 1,367,319.60 and 538,090.80 is: 742,573.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,799.84 : 1,367,319.60 = 538,090.80 : x
  2. Step 2: Convert to fraction form
    990,799.84/1,367,319.60 = 538,090.80/x
  3. Step 3: Cross multiply
    990,799.84x = 1,367,319.60 × 538,090.80
  4. Step 4: Simplify right side
    990,799.84x = 735,742,097,419.68
  5. Step 5: Solve for x
    x = 735,742,097,419.68/990,799.84
  6. Step 6: Final answer
    x = 742,573.90

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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.