Home / 831,673.64-1,147,724.58-487,757.64

Finding the Fourth Proportional to 831,673.64, 1,147,724.58 and 487,757.64

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Solution

The fourth proportional to 831,673.64, 1,147,724.58 and 487,757.64 is: 673,114.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,673.64 : 1,147,724.58 = 487,757.64 : x
  2. Step 2: Convert to fraction form
    831,673.64/1,147,724.58 = 487,757.64/x
  3. Step 3: Cross multiply
    831,673.64x = 1,147,724.58 × 487,757.64
  4. Step 4: Simplify right side
    831,673.64x = 559,811,432,510.79
  5. Step 5: Solve for x
    x = 559,811,432,510.79/831,673.64
  6. Step 6: Final answer
    x = 673,114.32

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Double scale
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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.