Home / 1,385,150.15-1,911,539.34-868,925.77

Finding the Fourth Proportional to 1,385,150.15, 1,911,539.34 and 868,925.77

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Solution

The fourth proportional to 1,385,150.15, 1,911,539.34 and 868,925.77 is: 1,199,137.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,150.15 : 1,911,539.34 = 868,925.77 : x
  2. Step 2: Convert to fraction form
    1,385,150.15/1,911,539.34 = 868,925.77/x
  3. Step 3: Cross multiply
    1,385,150.15x = 1,911,539.34 × 868,925.77
  4. Step 4: Simplify right side
    1,385,150.15x = 1,660,985,788,115.94
  5. Step 5: Solve for x
    x = 1,660,985,788,115.94/1,385,150.15
  6. Step 6: Final answer
    x = 1,199,137.71

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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.