Home / 1,565,529.98-2,160,394.83-920,991.69

Finding the Fourth Proportional to 1,565,529.98, 2,160,394.83 and 920,991.69

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Solution

The fourth proportional to 1,565,529.98, 2,160,394.83 and 920,991.69 is: 1,270,947.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,565,529.98 : 2,160,394.83 = 920,991.69 : x
  2. Step 2: Convert to fraction form
    1,565,529.98/2,160,394.83 = 920,991.69/x
  3. Step 3: Cross multiply
    1,565,529.98x = 2,160,394.83 × 920,991.69
  4. Step 4: Simplify right side
    1,565,529.98x = 1,989,705,685,548.96
  5. Step 5: Solve for x
    x = 1,989,705,685,548.96/1,565,529.98
  6. Step 6: Final answer
    x = 1,270,947.04

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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.