Home / 748,601.40-1,122,950.70-394,307.40

Finding the Fourth Proportional to 748,601.40, 1,122,950.70 and 394,307.40

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Solution

The fourth proportional to 748,601.40, 1,122,950.70 and 394,307.40 is: 591,486.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,601.40 : 1,122,950.70 = 394,307.40 : x
  2. Step 2: Convert to fraction form
    748,601.40/1,122,950.70 = 394,307.40/x
  3. Step 3: Cross multiply
    748,601.40x = 1,122,950.70 × 394,307.40
  4. Step 4: Simplify right side
    748,601.40x = 442,787,770,845.18
  5. Step 5: Solve for x
    x = 442,787,770,845.18/748,601.40
  6. Step 6: Final answer
    x = 591,486.70

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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.