Home / 663,088.60-993,976.80-325,853.20

Finding the Fourth Proportional to 663,088.60, 993,976.80 and 325,853.20

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Solution

The fourth proportional to 663,088.60, 993,976.80 and 325,853.20 is: 488,457.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,088.60 : 993,976.80 = 325,853.20 : x
  2. Step 2: Convert to fraction form
    663,088.60/993,976.80 = 325,853.20/x
  3. Step 3: Cross multiply
    663,088.60x = 993,976.80 × 325,853.20
  4. Step 4: Simplify right side
    663,088.60x = 323,890,521,005.76
  5. Step 5: Solve for x
    x = 323,890,521,005.76/663,088.60
  6. Step 6: Final answer
    x = 488,457.38

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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.