Home / 1,565,919.56-2,160,932.24-921,381.50

Finding the Fourth Proportional to 1,565,919.56, 2,160,932.24 and 921,381.50

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Solution

The fourth proportional to 1,565,919.56, 2,160,932.24 and 921,381.50 is: 1,271,484.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,565,919.56 : 2,160,932.24 = 921,381.50 : x
  2. Step 2: Convert to fraction form
    1,565,919.56/2,160,932.24 = 921,381.50/x
  3. Step 3: Cross multiply
    1,565,919.56x = 2,160,932.24 × 921,381.50
  4. Step 4: Simplify right side
    1,565,919.56x = 1,991,042,996,395.34
  5. Step 5: Solve for x
    x = 1,991,042,996,395.34/1,565,919.56
  6. Step 6: Final answer
    x = 1,271,484.85

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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.