Home / 1,387,628.31-2,081,585.25-523,790.84

Finding the Fourth Proportional to 1,387,628.31, 2,081,585.25 and 523,790.84

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Solution

The fourth proportional to 1,387,628.31, 2,081,585.25 and 523,790.84 is: 785,740.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,628.31 : 2,081,585.25 = 523,790.84 : x
  2. Step 2: Convert to fraction form
    1,387,628.31/2,081,585.25 = 523,790.84/x
  3. Step 3: Cross multiply
    1,387,628.31x = 2,081,585.25 × 523,790.84
  4. Step 4: Simplify right side
    1,387,628.31x = 1,090,315,291,833.07
  5. Step 5: Solve for x
    x = 1,090,315,291,833.07/1,387,628.31
  6. Step 6: Final answer
    x = 785,740.16

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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.