Home / 399,903.41-548,929.15-353,566.35

Finding the Fourth Proportional to 399,903.41, 548,929.15 and 353,566.35

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Solution

The fourth proportional to 399,903.41, 548,929.15 and 353,566.35 is: 485,324.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,903.41 : 548,929.15 = 353,566.35 : x
  2. Step 2: Convert to fraction form
    399,903.41/548,929.15 = 353,566.35/x
  3. Step 3: Cross multiply
    399,903.41x = 548,929.15 × 353,566.35
  4. Step 4: Simplify right side
    399,903.41x = 194,082,875,090.19
  5. Step 5: Solve for x
    x = 194,082,875,090.19/399,903.41
  6. Step 6: Final answer
    x = 485,324.38

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.