Home / 1,128,056.40-1,692,084.60-792,133.20

Finding the Fourth Proportional to 1,128,056.40, 1,692,084.60 and 792,133.20

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Solution

The fourth proportional to 1,128,056.40, 1,692,084.60 and 792,133.20 is: 1,188,199.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,056.40 : 1,692,084.60 = 792,133.20 : x
  2. Step 2: Convert to fraction form
    1,128,056.40/1,692,084.60 = 792,133.20/x
  3. Step 3: Cross multiply
    1,128,056.40x = 1,692,084.60 × 792,133.20
  4. Step 4: Simplify right side
    1,128,056.40x = 1,340,356,388,868.72
  5. Step 5: Solve for x
    x = 1,340,356,388,868.72/1,128,056.40
  6. Step 6: Final answer
    x = 1,188,199.80

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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.