Home / 931,427.10-1,397,140.65-332,407.80

Finding the Fourth Proportional to 931,427.10, 1,397,140.65 and 332,407.80

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Solution

The fourth proportional to 931,427.10, 1,397,140.65 and 332,407.80 is: 498,611.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,427.10 : 1,397,140.65 = 332,407.80 : x
  2. Step 2: Convert to fraction form
    931,427.10/1,397,140.65 = 332,407.80/x
  3. Step 3: Cross multiply
    931,427.10x = 1,397,140.65 × 332,407.80
  4. Step 4: Simplify right side
    931,427.10x = 464,420,449,757.07
  5. Step 5: Solve for x
    x = 464,420,449,757.07/931,427.10
  6. Step 6: Final answer
    x = 498,611.70

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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.