Home / 1,128,643.20-1,693,353.60-498,009.60

Finding the Fourth Proportional to 1,128,643.20, 1,693,353.60 and 498,009.60

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Solution

The fourth proportional to 1,128,643.20, 1,693,353.60 and 498,009.60 is: 747,185.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,643.20 : 1,693,353.60 = 498,009.60 : x
  2. Step 2: Convert to fraction form
    1,128,643.20/1,693,353.60 = 498,009.60/x
  3. Step 3: Cross multiply
    1,128,643.20x = 1,693,353.60 × 498,009.60
  4. Step 4: Simplify right side
    1,128,643.20x = 843,306,348,994.56
  5. Step 5: Solve for x
    x = 843,306,348,994.56/1,128,643.20
  6. Step 6: Final answer
    x = 747,185.96

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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.