Home / 1,621,118.48-2,237,421.30-942,448.64

Finding the Fourth Proportional to 1,621,118.48, 2,237,421.30 and 942,448.64

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Solution

The fourth proportional to 1,621,118.48, 2,237,421.30 and 942,448.64 is: 1,300,740.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,621,118.48 : 2,237,421.30 = 942,448.64 : x
  2. Step 2: Convert to fraction form
    1,621,118.48/2,237,421.30 = 942,448.64/x
  3. Step 3: Cross multiply
    1,621,118.48x = 2,237,421.30 × 942,448.64
  4. Step 4: Simplify right side
    1,621,118.48x = 2,108,654,661,292.03
  5. Step 5: Solve for x
    x = 2,108,654,661,292.03/1,621,118.48
  6. Step 6: Final answer
    x = 1,300,740.62

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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.