Home / 665,331.10-996,848.47-309,615.55

Finding the Fourth Proportional to 665,331.10, 996,848.47 and 309,615.55

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Solution

The fourth proportional to 665,331.10, 996,848.47 and 309,615.55 is: 463,889.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,331.10 : 996,848.47 = 309,615.55 : x
  2. Step 2: Convert to fraction form
    665,331.10/996,848.47 = 309,615.55/x
  3. Step 3: Cross multiply
    665,331.10x = 996,848.47 × 309,615.55
  4. Step 4: Simplify right side
    665,331.10x = 308,639,787,305.71
  5. Step 5: Solve for x
    x = 308,639,787,305.71/665,331.10
  6. Step 6: Final answer
    x = 463,889.01

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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.