Home / 1,989,813.60-2,984,720.40-493,905.60

Finding the Fourth Proportional to 1,989,813.60, 2,984,720.40 and 493,905.60

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Solution

The fourth proportional to 1,989,813.60, 2,984,720.40 and 493,905.60 is: 740,858.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,989,813.60 : 2,984,720.40 = 493,905.60 : x
  2. Step 2: Convert to fraction form
    1,989,813.60/2,984,720.40 = 493,905.60/x
  3. Step 3: Cross multiply
    1,989,813.60x = 2,984,720.40 × 493,905.60
  4. Step 4: Simplify right side
    1,989,813.60x = 1,474,170,119,994.24
  5. Step 5: Solve for x
    x = 1,474,170,119,994.24/1,989,813.60
  6. Step 6: Final answer
    x = 740,858.40

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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.