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Finding the Fourth Proportional to 455,964.40, 683,946.60 and 367,390.90

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Solution

The fourth proportional to 455,964.40, 683,946.60 and 367,390.90 is: 551,086.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,964.40 : 683,946.60 = 367,390.90 : x
  2. Step 2: Convert to fraction form
    455,964.40/683,946.60 = 367,390.90/x
  3. Step 3: Cross multiply
    455,964.40x = 683,946.60 × 367,390.90
  4. Step 4: Simplify right side
    455,964.40x = 251,275,756,925.94
  5. Step 5: Solve for x
    x = 251,275,756,925.94/455,964.40
  6. Step 6: Final answer
    x = 551,086.35

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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.