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Finding the Fourth Proportional to 703,483.95, 970,433.46 and 427,926.05

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Solution

The fourth proportional to 703,483.95, 970,433.46 and 427,926.05 is: 590,310.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,483.95 : 970,433.46 = 427,926.05 : x
  2. Step 2: Convert to fraction form
    703,483.95/970,433.46 = 427,926.05/x
  3. Step 3: Cross multiply
    703,483.95x = 970,433.46 × 427,926.05
  4. Step 4: Simplify right side
    703,483.95x = 415,273,759,751.72
  5. Step 5: Solve for x
    x = 415,273,759,751.72/703,483.95
  6. Step 6: Final answer
    x = 590,310.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.