Home / 1,536,875.80-2,305,313.70-978,386.20

Finding the Fourth Proportional to 1,536,875.80, 2,305,313.70 and 978,386.20

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Solution

The fourth proportional to 1,536,875.80, 2,305,313.70 and 978,386.20 is: 1,467,579.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,536,875.80 : 2,305,313.70 = 978,386.20 : x
  2. Step 2: Convert to fraction form
    1,536,875.80/2,305,313.70 = 978,386.20/x
  3. Step 3: Cross multiply
    1,536,875.80x = 2,305,313.70 × 978,386.20
  4. Step 4: Simplify right side
    1,536,875.80x = 2,255,487,110,750.94
  5. Step 5: Solve for x
    x = 2,255,487,110,750.94/1,536,875.80
  6. Step 6: Final answer
    x = 1,467,579.30

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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.