Home / 1,361,248.83-1,878,633.21-780,526

Finding the Fourth Proportional to 1,361,248.83, 1,878,633.21 and 780,526

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Solution

The fourth proportional to 1,361,248.83, 1,878,633.21 and 780,526 is: 1,077,188.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,361,248.83 : 1,878,633.21 = 780,526 : x
  2. Step 2: Convert to fraction form
    1,361,248.83/1,878,633.21 = 780,526/x
  3. Step 3: Cross multiply
    1,361,248.83x = 1,878,633.21 × 780,526
  4. Step 4: Simplify right side
    1,361,248.83x = 1,466,322,064,868.46
  5. Step 5: Solve for x
    x = 1,466,322,064,868.46/1,361,248.83
  6. Step 6: Final answer
    x = 1,077,188.85

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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.