Home / 970,825.20-1,455,719.40-409,225.20

Finding the Fourth Proportional to 970,825.20, 1,455,719.40 and 409,225.20

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Solution

The fourth proportional to 970,825.20, 1,455,719.40 and 409,225.20 is: 613,619.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,825.20 : 1,455,719.40 = 409,225.20 : x
  2. Step 2: Convert to fraction form
    970,825.20/1,455,719.40 = 409,225.20/x
  3. Step 3: Cross multiply
    970,825.20x = 1,455,719.40 × 409,225.20
  4. Step 4: Simplify right side
    970,825.20x = 595,717,062,608.88
  5. Step 5: Solve for x
    x = 595,717,062,608.88/970,825.20
  6. Step 6: Final answer
    x = 613,619.28

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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.