Home / 1,138,458.96-1,571,240.16-685,740.24

Finding the Fourth Proportional to 1,138,458.96, 1,571,240.16 and 685,740.24

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Solution

The fourth proportional to 1,138,458.96, 1,571,240.16 and 685,740.24 is: 946,422.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,458.96 : 1,571,240.16 = 685,740.24 : x
  2. Step 2: Convert to fraction form
    1,138,458.96/1,571,240.16 = 685,740.24/x
  3. Step 3: Cross multiply
    1,138,458.96x = 1,571,240.16 × 685,740.24
  4. Step 4: Simplify right side
    1,138,458.96x = 1,077,462,604,416.04
  5. Step 5: Solve for x
    x = 1,077,462,604,416.04/1,138,458.96
  6. Step 6: Final answer
    x = 946,422.00

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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.