Home / 921,038.09-1,261,826.57-886,521.76

Finding the Fourth Proportional to 921,038.09, 1,261,826.57 and 886,521.76

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Solution

The fourth proportional to 921,038.09, 1,261,826.57 and 886,521.76 is: 1,214,539.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,038.09 : 1,261,826.57 = 886,521.76 : x
  2. Step 2: Convert to fraction form
    921,038.09/1,261,826.57 = 886,521.76/x
  3. Step 3: Cross multiply
    921,038.09x = 1,261,826.57 × 886,521.76
  4. Step 4: Simplify right side
    921,038.09x = 1,118,636,711,651.16
  5. Step 5: Solve for x
    x = 1,118,636,711,651.16/921,038.09
  6. Step 6: Final answer
    x = 1,214,539.03

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.