Home / 665,905.08-999,005.62-310,725.36

Finding the Fourth Proportional to 665,905.08, 999,005.62 and 310,725.36

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Solution

The fourth proportional to 665,905.08, 999,005.62 and 310,725.36 is: 466,157.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,905.08 : 999,005.62 = 310,725.36 : x
  2. Step 2: Convert to fraction form
    665,905.08/999,005.62 = 310,725.36/x
  3. Step 3: Cross multiply
    665,905.08x = 999,005.62 × 310,725.36
  4. Step 4: Simplify right side
    665,905.08x = 310,416,380,916.52
  5. Step 5: Solve for x
    x = 310,416,380,916.52/665,905.08
  6. Step 6: Final answer
    x = 466,157.10

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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.