Home / 680,867.70-1,021,301.55-456,918.90

Finding the Fourth Proportional to 680,867.70, 1,021,301.55 and 456,918.90

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Solution

The fourth proportional to 680,867.70, 1,021,301.55 and 456,918.90 is: 685,378.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,867.70 : 1,021,301.55 = 456,918.90 : x
  2. Step 2: Convert to fraction form
    680,867.70/1,021,301.55 = 456,918.90/x
  3. Step 3: Cross multiply
    680,867.70x = 1,021,301.55 × 456,918.90
  4. Step 4: Simplify right side
    680,867.70x = 466,651,980,794.30
  5. Step 5: Solve for x
    x = 466,651,980,794.30/680,867.70
  6. Step 6: Final answer
    x = 685,378.35

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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.