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Finding the Fourth Proportional to 713,807.10, 985,136.13 and 427,327.02

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Solution

The fourth proportional to 713,807.10, 985,136.13 and 427,327.02 is: 589,760.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,807.10 : 985,136.13 = 427,327.02 : x
  2. Step 2: Convert to fraction form
    713,807.10/985,136.13 = 427,327.02/x
  3. Step 3: Cross multiply
    713,807.10x = 985,136.13 × 427,327.02
  4. Step 4: Simplify right side
    713,807.10x = 420,975,286,727.23
  5. Step 5: Solve for x
    x = 420,975,286,727.23/713,807.10
  6. Step 6: Final answer
    x = 589,760.58

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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.