Home / 2,970,525.72-4,455,959.40-840,431.28

Finding the Fourth Proportional to 2,970,525.72, 4,455,959.40 and 840,431.28

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Solution

The fourth proportional to 2,970,525.72, 4,455,959.40 and 840,431.28 is: 1,260,695.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,970,525.72 : 4,455,959.40 = 840,431.28 : x
  2. Step 2: Convert to fraction form
    2,970,525.72/4,455,959.40 = 840,431.28/x
  3. Step 3: Cross multiply
    2,970,525.72x = 4,455,959.40 × 840,431.28
  4. Step 4: Simplify right side
    2,970,525.72x = 3,744,927,662,170.03
  5. Step 5: Solve for x
    x = 3,744,927,662,170.03/2,970,525.72
  6. Step 6: Final answer
    x = 1,260,695.25

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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.