Home / 726,609.58-1,089,920.45-253,294.18

Finding the Fourth Proportional to 726,609.58, 1,089,920.45 and 253,294.18

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Solution

The fourth proportional to 726,609.58, 1,089,920.45 and 253,294.18 is: 379,943.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,609.58 : 1,089,920.45 = 253,294.18 : x
  2. Step 2: Convert to fraction form
    726,609.58/1,089,920.45 = 253,294.18/x
  3. Step 3: Cross multiply
    726,609.58x = 1,089,920.45 × 253,294.18
  4. Step 4: Simplify right side
    726,609.58x = 276,070,506,647.98
  5. Step 5: Solve for x
    x = 276,070,506,647.98/726,609.58
  6. Step 6: Final answer
    x = 379,943.39

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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.