Home / 709,533.30-1,063,971.90-309,968.40

Finding the Fourth Proportional to 709,533.30, 1,063,971.90 and 309,968.40

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Solution

The fourth proportional to 709,533.30, 1,063,971.90 and 309,968.40 is: 464,809.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,533.30 : 1,063,971.90 = 309,968.40 : x
  2. Step 2: Convert to fraction form
    709,533.30/1,063,971.90 = 309,968.40/x
  3. Step 3: Cross multiply
    709,533.30x = 1,063,971.90 × 309,968.40
  4. Step 4: Simplify right side
    709,533.30x = 329,797,667,487.96
  5. Step 5: Solve for x
    x = 329,797,667,487.96/709,533.30
  6. Step 6: Final answer
    x = 464,809.29

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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.