Home / 1,317,510.03-1,818,068.37-728,784.58

Finding the Fourth Proportional to 1,317,510.03, 1,818,068.37 and 728,784.58

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Solution

The fourth proportional to 1,317,510.03, 1,818,068.37 and 728,784.58 is: 1,005,669.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317,510.03 : 1,818,068.37 = 728,784.58 : x
  2. Step 2: Convert to fraction form
    1,317,510.03/1,818,068.37 = 728,784.58/x
  3. Step 3: Cross multiply
    1,317,510.03x = 1,818,068.37 × 728,784.58
  4. Step 4: Simplify right side
    1,317,510.03x = 1,324,980,193,441.73
  5. Step 5: Solve for x
    x = 1,324,980,193,441.73/1,317,510.03
  6. Step 6: Final answer
    x = 1,005,669.91

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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.