Home / 1,256,055.72-1,887,890.04-831,041.16

Finding the Fourth Proportional to 1,256,055.72, 1,887,890.04 and 831,041.16

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Solution

The fourth proportional to 1,256,055.72, 1,887,890.04 and 831,041.16 is: 1,249,080.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,256,055.72 : 1,887,890.04 = 831,041.16 : x
  2. Step 2: Convert to fraction form
    1,256,055.72/1,887,890.04 = 831,041.16/x
  3. Step 3: Cross multiply
    1,256,055.72x = 1,887,890.04 × 831,041.16
  4. Step 4: Simplify right side
    1,256,055.72x = 1,568,914,328,794.05
  5. Step 5: Solve for x
    x = 1,568,914,328,794.05/1,256,055.72
  6. Step 6: Final answer
    x = 1,249,080.20

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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.