Home / 1,051,719.20-1,577,967.60-421,085.60

Finding the Fourth Proportional to 1,051,719.20, 1,577,967.60 and 421,085.60

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Solution

The fourth proportional to 1,051,719.20, 1,577,967.60 and 421,085.60 is: 631,784.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,051,719.20 : 1,577,967.60 = 421,085.60 : x
  2. Step 2: Convert to fraction form
    1,051,719.20/1,577,967.60 = 421,085.60/x
  3. Step 3: Cross multiply
    1,051,719.20x = 1,577,967.60 × 421,085.60
  4. Step 4: Simplify right side
    1,051,719.20x = 664,459,433,626.56
  5. Step 5: Solve for x
    x = 664,459,433,626.56/1,051,719.20
  6. Step 6: Final answer
    x = 631,784.07

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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.