Home / 1,390,522.56-2,086,009.44-430,753.92

Finding the Fourth Proportional to 1,390,522.56, 2,086,009.44 and 430,753.92

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Solution

The fourth proportional to 1,390,522.56, 2,086,009.44 and 430,753.92 is: 646,200.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390,522.56 : 2,086,009.44 = 430,753.92 : x
  2. Step 2: Convert to fraction form
    1,390,522.56/2,086,009.44 = 430,753.92/x
  3. Step 3: Cross multiply
    1,390,522.56x = 2,086,009.44 × 430,753.92
  4. Step 4: Simplify right side
    1,390,522.56x = 898,556,743,437.01
  5. Step 5: Solve for x
    x = 898,556,743,437.01/1,390,522.56
  6. Step 6: Final answer
    x = 646,200.77

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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.