Home / 1,536,681.80-2,305,022.70-978,192.20

Finding the Fourth Proportional to 1,536,681.80, 2,305,022.70 and 978,192.20

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Solution

The fourth proportional to 1,536,681.80, 2,305,022.70 and 978,192.20 is: 1,467,288.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,536,681.80 : 2,305,022.70 = 978,192.20 : x
  2. Step 2: Convert to fraction form
    1,536,681.80/2,305,022.70 = 978,192.20/x
  3. Step 3: Cross multiply
    1,536,681.80x = 2,305,022.70 × 978,192.20
  4. Step 4: Simplify right side
    1,536,681.80x = 2,254,755,225,962.94
  5. Step 5: Solve for x
    x = 2,254,755,225,962.94/1,536,681.80
  6. Step 6: Final answer
    x = 1,467,288.30

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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.