Home / 744,599.09-1,117,009.35-345,280.23

Finding the Fourth Proportional to 744,599.09, 1,117,009.35 and 345,280.23

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Solution

The fourth proportional to 744,599.09, 1,117,009.35 and 345,280.23 is: 517,971.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,599.09 : 1,117,009.35 = 345,280.23 : x
  2. Step 2: Convert to fraction form
    744,599.09/1,117,009.35 = 345,280.23/x
  3. Step 3: Cross multiply
    744,599.09x = 1,117,009.35 × 345,280.23
  4. Step 4: Simplify right side
    744,599.09x = 385,681,245,280.15
  5. Step 5: Solve for x
    x = 385,681,245,280.15/744,599.09
  6. Step 6: Final answer
    x = 517,971.69

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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.