Home / 680,739.40-1,021,497.90-470,528.20

Finding the Fourth Proportional to 680,739.40, 1,021,497.90 and 470,528.20

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Solution

The fourth proportional to 680,739.40, 1,021,497.90 and 470,528.20 is: 706,061.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,739.40 : 1,021,497.90 = 470,528.20 : x
  2. Step 2: Convert to fraction form
    680,739.40/1,021,497.90 = 470,528.20/x
  3. Step 3: Cross multiply
    680,739.40x = 1,021,497.90 × 470,528.20
  4. Step 4: Simplify right side
    680,739.40x = 480,643,568,190.78
  5. Step 5: Solve for x
    x = 480,643,568,190.78/680,739.40
  6. Step 6: Final answer
    x = 706,061.04

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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.