Home / 759,829.80-1,139,744.70-316,540.20

Finding the Fourth Proportional to 759,829.80, 1,139,744.70 and 316,540.20

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Solution

The fourth proportional to 759,829.80, 1,139,744.70 and 316,540.20 is: 474,810.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,829.80 : 1,139,744.70 = 316,540.20 : x
  2. Step 2: Convert to fraction form
    759,829.80/1,139,744.70 = 316,540.20/x
  3. Step 3: Cross multiply
    759,829.80x = 1,139,744.70 × 316,540.20
  4. Step 4: Simplify right side
    759,829.80x = 360,775,015,286.94
  5. Step 5: Solve for x
    x = 360,775,015,286.94/759,829.80
  6. Step 6: Final answer
    x = 474,810.30

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1.5x scale

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.