Home / 631,848.50-947,772.88-211,124.42

Finding the Fourth Proportional to 631,848.50, 947,772.88 and 211,124.42

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Solution

The fourth proportional to 631,848.50, 947,772.88 and 211,124.42 is: 316,686.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,848.50 : 947,772.88 = 211,124.42 : x
  2. Step 2: Convert to fraction form
    631,848.50/947,772.88 = 211,124.42/x
  3. Step 3: Cross multiply
    631,848.50x = 947,772.88 × 211,124.42
  4. Step 4: Simplify right side
    631,848.50x = 200,097,999,581.73
  5. Step 5: Solve for x
    x = 200,097,999,581.73/631,848.50
  6. Step 6: Final answer
    x = 316,686.67

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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.