Home / 1,331,980.84-1,838,096.23-728,355.88

Finding the Fourth Proportional to 1,331,980.84, 1,838,096.23 and 728,355.88

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Solution

The fourth proportional to 1,331,980.84, 1,838,096.23 and 728,355.88 is: 1,005,110.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331,980.84 : 1,838,096.23 = 728,355.88 : x
  2. Step 2: Convert to fraction form
    1,331,980.84/1,838,096.23 = 728,355.88/x
  3. Step 3: Cross multiply
    1,331,980.84x = 1,838,096.23 × 728,355.88
  4. Step 4: Simplify right side
    1,331,980.84x = 1,338,788,184,294.07
  5. Step 5: Solve for x
    x = 1,338,788,184,294.07/1,331,980.84
  6. Step 6: Final answer
    x = 1,005,110.70

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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.