Home / 1,091,969.20-1,638,002.40-372,300.40

Finding the Fourth Proportional to 1,091,969.20, 1,638,002.40 and 372,300.40

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Solution

The fourth proportional to 1,091,969.20, 1,638,002.40 and 372,300.40 is: 558,467.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,969.20 : 1,638,002.40 = 372,300.40 : x
  2. Step 2: Convert to fraction form
    1,091,969.20/1,638,002.40 = 372,300.40/x
  3. Step 3: Cross multiply
    1,091,969.20x = 1,638,002.40 × 372,300.40
  4. Step 4: Simplify right side
    1,091,969.20x = 609,828,948,720.96
  5. Step 5: Solve for x
    x = 609,828,948,720.96/1,091,969.20
  6. Step 6: Final answer
    x = 558,467.17

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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.