Home / 1,290,077.02-1,935,189.36-391,548.07

Finding the Fourth Proportional to 1,290,077.02, 1,935,189.36 and 391,548.07

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Solution

The fourth proportional to 1,290,077.02, 1,935,189.36 and 391,548.07 is: 587,344.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,077.02 : 1,935,189.36 = 391,548.07 : x
  2. Step 2: Convert to fraction form
    1,290,077.02/1,935,189.36 = 391,548.07/x
  3. Step 3: Cross multiply
    1,290,077.02x = 1,935,189.36 × 391,548.07
  4. Step 4: Simplify right side
    1,290,077.02x = 757,719,658,992.54
  5. Step 5: Solve for x
    x = 757,719,658,992.54/1,290,077.02
  6. Step 6: Final answer
    x = 587,344.51

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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.