Home / 1,487,311.31-2,052,489.57-808,247.81

Finding the Fourth Proportional to 1,487,311.31, 2,052,489.57 and 808,247.81

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Solution

The fourth proportional to 1,487,311.31, 2,052,489.57 and 808,247.81 is: 1,115,381.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,487,311.31 : 2,052,489.57 = 808,247.81 : x
  2. Step 2: Convert to fraction form
    1,487,311.31/2,052,489.57 = 808,247.81/x
  3. Step 3: Cross multiply
    1,487,311.31x = 2,052,489.57 × 808,247.81
  4. Step 4: Simplify right side
    1,487,311.31x = 1,658,920,200,000.34
  5. Step 5: Solve for x
    x = 1,658,920,200,000.34/1,487,311.31
  6. Step 6: Final answer
    x = 1,115,381.96

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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.