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Finding the Fourth Proportional to 1,510,804.90, 2,084,904.93 and 831,741.40

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Solution

The fourth proportional to 1,510,804.90, 2,084,904.93 and 831,741.40 is: 1,147,799.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,510,804.90 : 2,084,904.93 = 831,741.40 : x
  2. Step 2: Convert to fraction form
    1,510,804.90/2,084,904.93 = 831,741.40/x
  3. Step 3: Cross multiply
    1,510,804.90x = 2,084,904.93 × 831,741.40
  4. Step 4: Simplify right side
    1,510,804.90x = 1,734,101,745,345.10
  5. Step 5: Solve for x
    x = 1,734,101,745,345.10/1,510,804.90
  6. Step 6: Final answer
    x = 1,147,799.92

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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.