Home / 659,493.28-989,318.40-210,056.32

Finding the Fourth Proportional to 659,493.28, 989,318.40 and 210,056.32

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Solution

The fourth proportional to 659,493.28, 989,318.40 and 210,056.32 is: 315,109.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,493.28 : 989,318.40 = 210,056.32 : x
  2. Step 2: Convert to fraction form
    659,493.28/989,318.40 = 210,056.32/x
  3. Step 3: Cross multiply
    659,493.28x = 989,318.40 × 210,056.32
  4. Step 4: Simplify right side
    659,493.28x = 207,812,582,412.29
  5. Step 5: Solve for x
    x = 207,812,582,412.29/659,493.28
  6. Step 6: Final answer
    x = 315,109.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.