Home / 1,583,456.05-2,185,110.80-858,288.20

Finding the Fourth Proportional to 1,583,456.05, 2,185,110.80 and 858,288.20

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Solution

The fourth proportional to 1,583,456.05, 2,185,110.80 and 858,288.20 is: 1,184,405.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,583,456.05 : 2,185,110.80 = 858,288.20 : x
  2. Step 2: Convert to fraction form
    1,583,456.05/2,185,110.80 = 858,288.20/x
  3. Step 3: Cross multiply
    1,583,456.05x = 2,185,110.80 × 858,288.20
  4. Step 4: Simplify right side
    1,583,456.05x = 1,875,454,812,015.50
  5. Step 5: Solve for x
    x = 1,875,454,812,015.50/1,583,456.05
  6. Step 6: Final answer
    x = 1,184,405.98

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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.