Home / 693,147.16-1,039,749.90-338,474.08

Finding the Fourth Proportional to 693,147.16, 1,039,749.90 and 338,474.08

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Solution

The fourth proportional to 693,147.16, 1,039,749.90 and 338,474.08 is: 507,725.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,147.16 : 1,039,749.90 = 338,474.08 : x
  2. Step 2: Convert to fraction form
    693,147.16/1,039,749.90 = 338,474.08/x
  3. Step 3: Cross multiply
    693,147.16x = 1,039,749.90 × 338,474.08
  4. Step 4: Simplify right side
    693,147.16x = 351,928,390,832.59
  5. Step 5: Solve for x
    x = 351,928,390,832.59/693,147.16
  6. Step 6: Final answer
    x = 507,725.36

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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.