Home / 1,370,143.72-2,055,412.48-423,588.25

Finding the Fourth Proportional to 1,370,143.72, 2,055,412.48 and 423,588.25

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Solution

The fourth proportional to 1,370,143.72, 2,055,412.48 and 423,588.25 is: 635,443.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,370,143.72 : 2,055,412.48 = 423,588.25 : x
  2. Step 2: Convert to fraction form
    1,370,143.72/2,055,412.48 = 423,588.25/x
  3. Step 3: Cross multiply
    1,370,143.72x = 2,055,412.48 × 423,588.25
  4. Step 4: Simplify right side
    1,370,143.72x = 870,648,575,431.36
  5. Step 5: Solve for x
    x = 870,648,575,431.36/1,370,143.72
  6. Step 6: Final answer
    x = 635,443.25

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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.