Home / 331,328.20-497,381.10-328,995.40

Finding the Fourth Proportional to 331,328.20, 497,381.10 and 328,995.40

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Solution

The fourth proportional to 331,328.20, 497,381.10 and 328,995.40 is: 493,879.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,328.20 : 497,381.10 = 328,995.40 : x
  2. Step 2: Convert to fraction form
    331,328.20/497,381.10 = 328,995.40/x
  3. Step 3: Cross multiply
    331,328.20x = 497,381.10 × 328,995.40
  4. Step 4: Simplify right side
    331,328.20x = 163,636,093,946.94
  5. Step 5: Solve for x
    x = 163,636,093,946.94/331,328.20
  6. Step 6: Final answer
    x = 493,879.16

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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.