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Finding the Fourth Proportional to 699,213.42, 964,988.60 and 427,440.42

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Solution

The fourth proportional to 699,213.42, 964,988.60 and 427,440.42 is: 589,913.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,213.42 : 964,988.60 = 427,440.42 : x
  2. Step 2: Convert to fraction form
    699,213.42/964,988.60 = 427,440.42/x
  3. Step 3: Cross multiply
    699,213.42x = 964,988.60 × 427,440.42
  4. Step 4: Simplify right side
    699,213.42x = 412,475,130,342.01
  5. Step 5: Solve for x
    x = 412,475,130,342.01/699,213.42
  6. Step 6: Final answer
    x = 589,913.06

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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.