Home / 759,693.46-1,139,119.53-310,729.64

Finding the Fourth Proportional to 759,693.46, 1,139,119.53 and 310,729.64

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Solution

The fourth proportional to 759,693.46, 1,139,119.53 and 310,729.64 is: 465,922.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,693.46 : 1,139,119.53 = 310,729.64 : x
  2. Step 2: Convert to fraction form
    759,693.46/1,139,119.53 = 310,729.64/x
  3. Step 3: Cross multiply
    759,693.46x = 1,139,119.53 × 310,729.64
  4. Step 4: Simplify right side
    759,693.46x = 353,958,201,473.87
  5. Step 5: Solve for x
    x = 353,958,201,473.87/759,693.46
  6. Step 6: Final answer
    x = 465,922.40

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Double scale
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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.