Home / 1,323,318.40-1,984,977.60-692,425.60

Finding the Fourth Proportional to 1,323,318.40, 1,984,977.60 and 692,425.60

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Solution

The fourth proportional to 1,323,318.40, 1,984,977.60 and 692,425.60 is: 1,038,638.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,323,318.40 : 1,984,977.60 = 692,425.60 : x
  2. Step 2: Convert to fraction form
    1,323,318.40/1,984,977.60 = 692,425.60/x
  3. Step 3: Cross multiply
    1,323,318.40x = 1,984,977.60 × 692,425.60
  4. Step 4: Simplify right side
    1,323,318.40x = 1,374,449,305,666.56
  5. Step 5: Solve for x
    x = 1,374,449,305,666.56/1,323,318.40
  6. Step 6: Final answer
    x = 1,038,638.40

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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.