Home / 727,815.16-1,004,371.63-405,518.37

Finding the Fourth Proportional to 727,815.16, 1,004,371.63 and 405,518.37

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Solution

The fourth proportional to 727,815.16, 1,004,371.63 and 405,518.37 is: 559,607.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,815.16 : 1,004,371.63 = 405,518.37 : x
  2. Step 2: Convert to fraction form
    727,815.16/1,004,371.63 = 405,518.37/x
  3. Step 3: Cross multiply
    727,815.16x = 1,004,371.63 × 405,518.37
  4. Step 4: Simplify right side
    727,815.16x = 407,291,146,271.84
  5. Step 5: Solve for x
    x = 407,291,146,271.84/727,815.16
  6. Step 6: Final answer
    x = 559,607.95

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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.