Home / 753,129.09-1,128,839.49-373,575.24

Finding the Fourth Proportional to 753,129.09, 1,128,839.49 and 373,575.24

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Solution

The fourth proportional to 753,129.09, 1,128,839.49 and 373,575.24 is: 559,939.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,129.09 : 1,128,839.49 = 373,575.24 : x
  2. Step 2: Convert to fraction form
    753,129.09/1,128,839.49 = 373,575.24/x
  3. Step 3: Cross multiply
    753,129.09x = 1,128,839.49 × 373,575.24
  4. Step 4: Simplify right side
    753,129.09x = 421,706,483,398.23
  5. Step 5: Solve for x
    x = 421,706,483,398.23/753,129.09
  6. Step 6: Final answer
    x = 559,939.18

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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.