Home / 679,969.60-1,020,176.30-325,011.28

Finding the Fourth Proportional to 679,969.60, 1,020,176.30 and 325,011.28

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Solution

The fourth proportional to 679,969.60, 1,020,176.30 and 325,011.28 is: 487,622.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,969.60 : 1,020,176.30 = 325,011.28 : x
  2. Step 2: Convert to fraction form
    679,969.60/1,020,176.30 = 325,011.28/x
  3. Step 3: Cross multiply
    679,969.60x = 1,020,176.30 × 325,011.28
  4. Step 4: Simplify right side
    679,969.60x = 331,568,805,088.66
  5. Step 5: Solve for x
    x = 331,568,805,088.66/679,969.60
  6. Step 6: Final answer
    x = 487,622.98

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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.