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Finding the Fourth Proportional to 490,699.60, 736,049.40 and 384,411.40

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Solution

The fourth proportional to 490,699.60, 736,049.40 and 384,411.40 is: 576,617.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,699.60 : 736,049.40 = 384,411.40 : x
  2. Step 2: Convert to fraction form
    490,699.60/736,049.40 = 384,411.40/x
  3. Step 3: Cross multiply
    490,699.60x = 736,049.40 × 384,411.40
  4. Step 4: Simplify right side
    490,699.60x = 282,945,780,323.16
  5. Step 5: Solve for x
    x = 282,945,780,323.16/490,699.60
  6. Step 6: Final answer
    x = 576,617.10

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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.