Home / 843,411-1,264,811.90-338,087.64

Finding the Fourth Proportional to 843,411, 1,264,811.90 and 338,087.64

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Solution

The fourth proportional to 843,411, 1,264,811.90 and 338,087.64 is: 507,009.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    843,411 : 1,264,811.90 = 338,087.64 : x
  2. Step 2: Convert to fraction form
    843,411/1,264,811.90 = 338,087.64/x
  3. Step 3: Cross multiply
    843,411x = 1,264,811.90 × 338,087.64
  4. Step 4: Simplify right side
    843,411x = 427,617,270,314.92
  5. Step 5: Solve for x
    x = 427,617,270,314.92/843,411
  6. Step 6: Final answer
    x = 507,009.36

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Why These Related Problems?

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