Home / 769,985.20-1,154,956.20-349,260.40

Finding the Fourth Proportional to 769,985.20, 1,154,956.20 and 349,260.40

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Solution

The fourth proportional to 769,985.20, 1,154,956.20 and 349,260.40 is: 523,880.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,985.20 : 1,154,956.20 = 349,260.40 : x
  2. Step 2: Convert to fraction form
    769,985.20/1,154,956.20 = 349,260.40/x
  3. Step 3: Cross multiply
    769,985.20x = 1,154,956.20 × 349,260.40
  4. Step 4: Simplify right side
    769,985.20x = 403,380,464,394.48
  5. Step 5: Solve for x
    x = 403,380,464,394.48/769,985.20
  6. Step 6: Final answer
    x = 523,880.80

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Double scale
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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.