Home / 3,488,090.81-4,813,621.31-1,918,284.68

Finding the Fourth Proportional to 3,488,090.81, 4,813,621.31 and 1,918,284.68

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Solution

The fourth proportional to 3,488,090.81, 4,813,621.31 and 1,918,284.68 is: 2,647,263.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,488,090.81 : 4,813,621.31 = 1,918,284.68 : x
  2. Step 2: Convert to fraction form
    3,488,090.81/4,813,621.31 = 1,918,284.68/x
  3. Step 3: Cross multiply
    3,488,090.81x = 4,813,621.31 × 1,918,284.68
  4. Step 4: Simplify right side
    3,488,090.81x = 9,233,896,031,124.30
  5. Step 5: Solve for x
    x = 9,233,896,031,124.30/3,488,090.81
  6. Step 6: Final answer
    x = 2,647,263.66

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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.