Home / 1,290,886.80-1,936,860-570,848.64

Finding the Fourth Proportional to 1,290,886.80, 1,936,860 and 570,848.64

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Solution

The fourth proportional to 1,290,886.80, 1,936,860 and 570,848.64 is: 856,507.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,886.80 : 1,936,860 = 570,848.64 : x
  2. Step 2: Convert to fraction form
    1,290,886.80/1,936,860 = 570,848.64/x
  3. Step 3: Cross multiply
    1,290,886.80x = 1,936,860 × 570,848.64
  4. Step 4: Simplify right side
    1,290,886.80x = 1,105,653,896,870.40
  5. Step 5: Solve for x
    x = 1,105,653,896,870.40/1,290,886.80
  6. Step 6: Final answer
    x = 856,507.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.