Home / 1,209,892.80-1,814,839.20-836,644.80

Finding the Fourth Proportional to 1,209,892.80, 1,814,839.20 and 836,644.80

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Solution

The fourth proportional to 1,209,892.80, 1,814,839.20 and 836,644.80 is: 1,254,967.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,892.80 : 1,814,839.20 = 836,644.80 : x
  2. Step 2: Convert to fraction form
    1,209,892.80/1,814,839.20 = 836,644.80/x
  3. Step 3: Cross multiply
    1,209,892.80x = 1,814,839.20 × 836,644.80
  4. Step 4: Simplify right side
    1,209,892.80x = 1,518,375,779,516.16
  5. Step 5: Solve for x
    x = 1,518,375,779,516.16/1,209,892.80
  6. Step 6: Final answer
    x = 1,254,967.20

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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.