Home / 947,781.76-1,421,921.56-340,631.34

Finding the Fourth Proportional to 947,781.76, 1,421,921.56 and 340,631.34

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Solution

The fourth proportional to 947,781.76, 1,421,921.56 and 340,631.34 is: 511,036.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,781.76 : 1,421,921.56 = 340,631.34 : x
  2. Step 2: Convert to fraction form
    947,781.76/1,421,921.56 = 340,631.34/x
  3. Step 3: Cross multiply
    947,781.76x = 1,421,921.56 × 340,631.34
  4. Step 4: Simplify right side
    947,781.76x = 484,351,046,357.69
  5. Step 5: Solve for x
    x = 484,351,046,357.69/947,781.76
  6. Step 6: Final answer
    x = 511,036.47

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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.