Home / 1,331,980.34-1,838,095.54-728,355.38

Finding the Fourth Proportional to 1,331,980.34, 1,838,095.54 and 728,355.38

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Solution

The fourth proportional to 1,331,980.34, 1,838,095.54 and 728,355.38 is: 1,005,110.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331,980.34 : 1,838,095.54 = 728,355.38 : x
  2. Step 2: Convert to fraction form
    1,331,980.34/1,838,095.54 = 728,355.38/x
  3. Step 3: Cross multiply
    1,331,980.34x = 1,838,095.54 × 728,355.38
  4. Step 4: Simplify right side
    1,331,980.34x = 1,338,786,764,501.64
  5. Step 5: Solve for x
    x = 1,338,786,764,501.64/1,331,980.34
  6. Step 6: Final answer
    x = 1,005,110.01

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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.