Home / 736,040.40-1,104,060.60-421,112.40

Finding the Fourth Proportional to 736,040.40, 1,104,060.60 and 421,112.40

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Solution

The fourth proportional to 736,040.40, 1,104,060.60 and 421,112.40 is: 631,668.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    736,040.40 : 1,104,060.60 = 421,112.40 : x
  2. Step 2: Convert to fraction form
    736,040.40/1,104,060.60 = 421,112.40/x
  3. Step 3: Cross multiply
    736,040.40x = 1,104,060.60 × 421,112.40
  4. Step 4: Simplify right side
    736,040.40x = 464,933,609,011.44
  5. Step 5: Solve for x
    x = 464,933,609,011.44/736,040.40
  6. Step 6: Final answer
    x = 631,668.60

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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.