Home / 905,679.57-1,358,436.06-306,572.25

Finding the Fourth Proportional to 905,679.57, 1,358,436.06 and 306,572.25

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Solution

The fourth proportional to 905,679.57, 1,358,436.06 and 306,572.25 is: 459,830.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,679.57 : 1,358,436.06 = 306,572.25 : x
  2. Step 2: Convert to fraction form
    905,679.57/1,358,436.06 = 306,572.25/x
  3. Step 3: Cross multiply
    905,679.57x = 1,358,436.06 × 306,572.25
  4. Step 4: Simplify right side
    905,679.57x = 416,458,799,395.34
  5. Step 5: Solve for x
    x = 416,458,799,395.34/905,679.57
  6. Step 6: Final answer
    x = 459,830.18

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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.