Home / 539,421.04-744,394.16-309,975.56

Finding the Fourth Proportional to 539,421.04, 744,394.16 and 309,975.56

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Solution

The fourth proportional to 539,421.04, 744,394.16 and 309,975.56 is: 427,762.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,421.04 : 744,394.16 = 309,975.56 : x
  2. Step 2: Convert to fraction form
    539,421.04/744,394.16 = 309,975.56/x
  3. Step 3: Cross multiply
    539,421.04x = 744,394.16 × 309,975.56
  4. Step 4: Simplify right side
    539,421.04x = 230,743,996,606.73
  5. Step 5: Solve for x
    x = 230,743,996,606.73/539,421.04
  6. Step 6: Final answer
    x = 427,762.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.