Home / 680,006.40-1,020,009.60-325,712.40

Finding the Fourth Proportional to 680,006.40, 1,020,009.60 and 325,712.40

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Solution

The fourth proportional to 680,006.40, 1,020,009.60 and 325,712.40 is: 488,568.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,006.40 : 1,020,009.60 = 325,712.40 : x
  2. Step 2: Convert to fraction form
    680,006.40/1,020,009.60 = 325,712.40/x
  3. Step 3: Cross multiply
    680,006.40x = 1,020,009.60 × 325,712.40
  4. Step 4: Simplify right side
    680,006.40x = 332,229,774,839.04
  5. Step 5: Solve for x
    x = 332,229,774,839.04/680,006.40
  6. Step 6: Final answer
    x = 488,568.60

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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.