Home / 731,427.12-1,097,140.80-310,407.84

Finding the Fourth Proportional to 731,427.12, 1,097,140.80 and 310,407.84

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Solution

The fourth proportional to 731,427.12, 1,097,140.80 and 310,407.84 is: 465,611.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,427.12 : 1,097,140.80 = 310,407.84 : x
  2. Step 2: Convert to fraction form
    731,427.12/1,097,140.80 = 310,407.84/x
  3. Step 3: Cross multiply
    731,427.12x = 1,097,140.80 × 310,407.84
  4. Step 4: Simplify right side
    731,427.12x = 340,561,105,903.87
  5. Step 5: Solve for x
    x = 340,561,105,903.87/731,427.12
  6. Step 6: Final answer
    x = 465,611.81

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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.