Home / 693,145.13-1,039,835.91-309,033.36

Finding the Fourth Proportional to 693,145.13, 1,039,835.91 and 309,033.36

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Solution

The fourth proportional to 693,145.13, 1,039,835.91 and 309,033.36 is: 463,602.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,145.13 : 1,039,835.91 = 309,033.36 : x
  2. Step 2: Convert to fraction form
    693,145.13/1,039,835.91 = 309,033.36/x
  3. Step 3: Cross multiply
    693,145.13x = 1,039,835.91 × 309,033.36
  4. Step 4: Simplify right side
    693,145.13x = 321,343,986,274.83
  5. Step 5: Solve for x
    x = 321,343,986,274.83/693,145.13
  6. Step 6: Final answer
    x = 463,602.75

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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.