Home / 1,390,374.28-2,084,799.48-430,563.44

Finding the Fourth Proportional to 1,390,374.28, 2,084,799.48 and 430,563.44

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Solution

The fourth proportional to 1,390,374.28, 2,084,799.48 and 430,563.44 is: 645,609.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390,374.28 : 2,084,799.48 = 430,563.44 : x
  2. Step 2: Convert to fraction form
    1,390,374.28/2,084,799.48 = 430,563.44/x
  3. Step 3: Cross multiply
    1,390,374.28x = 2,084,799.48 × 430,563.44
  4. Step 4: Simplify right side
    1,390,374.28x = 897,638,435,819.01
  5. Step 5: Solve for x
    x = 897,638,435,819.01/1,390,374.28
  6. Step 6: Final answer
    x = 645,609.21

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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.