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Finding the Fourth Proportional to 539,154.75, 744,033.57 and 300,690.75

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Solution

The fourth proportional to 539,154.75, 744,033.57 and 300,690.75 is: 414,953.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,154.75 : 744,033.57 = 300,690.75 : x
  2. Step 2: Convert to fraction form
    539,154.75/744,033.57 = 300,690.75/x
  3. Step 3: Cross multiply
    539,154.75x = 744,033.57 × 300,690.75
  4. Step 4: Simplify right side
    539,154.75x = 223,724,012,188.48
  5. Step 5: Solve for x
    x = 223,724,012,188.48/539,154.75
  6. Step 6: Final answer
    x = 414,953.24

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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.