Home / 1,398,239.69-1,929,835.80-875,192.94

Finding the Fourth Proportional to 1,398,239.69, 1,929,835.80 and 875,192.94

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Solution

The fourth proportional to 1,398,239.69, 1,929,835.80 and 875,192.94 is: 1,207,932.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398,239.69 : 1,929,835.80 = 875,192.94 : x
  2. Step 2: Convert to fraction form
    1,398,239.69/1,929,835.80 = 875,192.94/x
  3. Step 3: Cross multiply
    1,398,239.69x = 1,929,835.80 × 875,192.94
  4. Step 4: Simplify right side
    1,398,239.69x = 1,688,978,667,519.25
  5. Step 5: Solve for x
    x = 1,688,978,667,519.25/1,398,239.69
  6. Step 6: Final answer
    x = 1,207,932.15

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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.