Home / 1,218,207.80-1,827,311.70-507,999.80

Finding the Fourth Proportional to 1,218,207.80, 1,827,311.70 and 507,999.80

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Solution

The fourth proportional to 1,218,207.80, 1,827,311.70 and 507,999.80 is: 761,999.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,207.80 : 1,827,311.70 = 507,999.80 : x
  2. Step 2: Convert to fraction form
    1,218,207.80/1,827,311.70 = 507,999.80/x
  3. Step 3: Cross multiply
    1,218,207.80x = 1,827,311.70 × 507,999.80
  4. Step 4: Simplify right side
    1,218,207.80x = 928,273,978,137.66
  5. Step 5: Solve for x
    x = 928,273,978,137.66/1,218,207.80
  6. Step 6: Final answer
    x = 761,999.70

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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.