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Finding the Fourth Proportional to 578,298.45, 798,051.76 and 323,649.64

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Solution

The fourth proportional to 578,298.45, 798,051.76 and 323,649.64 is: 446,636.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,298.45 : 798,051.76 = 323,649.64 : x
  2. Step 2: Convert to fraction form
    578,298.45/798,051.76 = 323,649.64/x
  3. Step 3: Cross multiply
    578,298.45x = 798,051.76 × 323,649.64
  4. Step 4: Simplify right side
    578,298.45x = 258,289,165,013.81
  5. Step 5: Solve for x
    x = 258,289,165,013.81/578,298.45
  6. Step 6: Final answer
    x = 446,636.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.