Home / 1,328,388.30-1,992,434.76-475,425.45

Finding the Fourth Proportional to 1,328,388.30, 1,992,434.76 and 475,425.45

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Solution

The fourth proportional to 1,328,388.30, 1,992,434.76 and 475,425.45 is: 713,085.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,388.30 : 1,992,434.76 = 475,425.45 : x
  2. Step 2: Convert to fraction form
    1,328,388.30/1,992,434.76 = 475,425.45/x
  3. Step 3: Cross multiply
    1,328,388.30x = 1,992,434.76 × 475,425.45
  4. Step 4: Simplify right side
    1,328,388.30x = 947,254,192,368.64
  5. Step 5: Solve for x
    x = 947,254,192,368.64/1,328,388.30
  6. Step 6: Final answer
    x = 713,085.32

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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.