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Finding the Fourth Proportional to 713,741.68, 985,150.92 and 427,485.52

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Solution

The fourth proportional to 713,741.68, 985,150.92 and 427,485.52 is: 590,042.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,741.68 : 985,150.92 = 427,485.52 : x
  2. Step 2: Convert to fraction form
    713,741.68/985,150.92 = 427,485.52/x
  3. Step 3: Cross multiply
    713,741.68x = 985,150.92 × 427,485.52
  4. Step 4: Simplify right side
    713,741.68x = 421,137,753,314.68
  5. Step 5: Solve for x
    x = 421,137,753,314.68/713,741.68
  6. Step 6: Final answer
    x = 590,042.26

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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.