Home / 405,623.20-608,434.80-264,618.40

Finding the Fourth Proportional to 405,623.20, 608,434.80 and 264,618.40

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Solution

The fourth proportional to 405,623.20, 608,434.80 and 264,618.40 is: 396,927.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,623.20 : 608,434.80 = 264,618.40 : x
  2. Step 2: Convert to fraction form
    405,623.20/608,434.80 = 264,618.40/x
  3. Step 3: Cross multiply
    405,623.20x = 608,434.80 × 264,618.40
  4. Step 4: Simplify right side
    405,623.20x = 161,003,043,280.32
  5. Step 5: Solve for x
    x = 161,003,043,280.32/405,623.20
  6. Step 6: Final answer
    x = 396,927.60

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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.