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Finding the Fourth Proportional to 483,313.90, 724,279.65 and 355,960.30

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Solution

The fourth proportional to 483,313.90, 724,279.65 and 355,960.30 is: 533,431.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,313.90 : 724,279.65 = 355,960.30 : x
  2. Step 2: Convert to fraction form
    483,313.90/724,279.65 = 355,960.30/x
  3. Step 3: Cross multiply
    483,313.90x = 724,279.65 × 355,960.30
  4. Step 4: Simplify right side
    483,313.90x = 257,814,801,497.90
  5. Step 5: Solve for x
    x = 257,814,801,497.90/483,313.90
  6. Step 6: Final answer
    x = 533,431.38

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Similar ratio
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1.5x scale

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.