Home / 630,914.46-945,584.10-315,461.58

Finding the Fourth Proportional to 630,914.46, 945,584.10 and 315,461.58

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Solution

The fourth proportional to 630,914.46, 945,584.10 and 315,461.58 is: 472,798.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,914.46 : 945,584.10 = 315,461.58 : x
  2. Step 2: Convert to fraction form
    630,914.46/945,584.10 = 315,461.58/x
  3. Step 3: Cross multiply
    630,914.46x = 945,584.10 × 315,461.58
  4. Step 4: Simplify right side
    630,914.46x = 298,295,454,208.88
  5. Step 5: Solve for x
    x = 298,295,454,208.88/630,914.46
  6. Step 6: Final answer
    x = 472,798.57

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Half scale
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Double scale
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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.