Home / 875,857.82-1,208,699.54-513,384.44

Finding the Fourth Proportional to 875,857.82, 1,208,699.54 and 513,384.44

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Solution

The fourth proportional to 875,857.82, 1,208,699.54 and 513,384.44 is: 708,479.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,857.82 : 1,208,699.54 = 513,384.44 : x
  2. Step 2: Convert to fraction form
    875,857.82/1,208,699.54 = 513,384.44/x
  3. Step 3: Cross multiply
    875,857.82x = 1,208,699.54 × 513,384.44
  4. Step 4: Simplify right side
    875,857.82x = 620,527,536,471.16
  5. Step 5: Solve for x
    x = 620,527,536,471.16/875,857.82
  6. Step 6: Final answer
    x = 708,479.76

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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.