Home / 1,233,281.70-1,701,938.12-689,439.60

Finding the Fourth Proportional to 1,233,281.70, 1,701,938.12 and 689,439.60

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Solution

The fourth proportional to 1,233,281.70, 1,701,938.12 and 689,439.60 is: 951,431.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,233,281.70 : 1,701,938.12 = 689,439.60 : x
  2. Step 2: Convert to fraction form
    1,233,281.70/1,701,938.12 = 689,439.60/x
  3. Step 3: Cross multiply
    1,233,281.70x = 1,701,938.12 × 689,439.60
  4. Step 4: Simplify right side
    1,233,281.70x = 1,173,383,533,230.35
  5. Step 5: Solve for x
    x = 1,173,383,533,230.35/1,233,281.70
  6. Step 6: Final answer
    x = 951,431.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.