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Finding the Fourth Proportional to 513,430.20, 769,489.20 and 246,616.20

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Solution

The fourth proportional to 513,430.20, 769,489.20 and 246,616.20 is: 369,609.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,430.20 : 769,489.20 = 246,616.20 : x
  2. Step 2: Convert to fraction form
    513,430.20/769,489.20 = 246,616.20/x
  3. Step 3: Cross multiply
    513,430.20x = 769,489.20 × 246,616.20
  4. Step 4: Simplify right side
    513,430.20x = 189,768,502,445.04
  5. Step 5: Solve for x
    x = 189,768,502,445.04/513,430.20
  6. Step 6: Final answer
    x = 369,609.16

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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.