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Finding the Fourth Proportional to 767,807.60, 1,151,711.40 and 341,342.60

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Solution

The fourth proportional to 767,807.60, 1,151,711.40 and 341,342.60 is: 512,013.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,807.60 : 1,151,711.40 = 341,342.60 : x
  2. Step 2: Convert to fraction form
    767,807.60/1,151,711.40 = 341,342.60/x
  3. Step 3: Cross multiply
    767,807.60x = 1,151,711.40 × 341,342.60
  4. Step 4: Simplify right side
    767,807.60x = 393,128,163,725.64
  5. Step 5: Solve for x
    x = 393,128,163,725.64/767,807.60
  6. Step 6: Final answer
    x = 512,013.90

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Double scale
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Similar ratio
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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.