Home / 999,985.96-1,380,008.16-570,336.04

Finding the Fourth Proportional to 999,985.96, 1,380,008.16 and 570,336.04

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Solution

The fourth proportional to 999,985.96, 1,380,008.16 and 570,336.04 is: 787,079.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,985.96 : 1,380,008.16 = 570,336.04 : x
  2. Step 2: Convert to fraction form
    999,985.96/1,380,008.16 = 570,336.04/x
  3. Step 3: Cross multiply
    999,985.96x = 1,380,008.16 × 570,336.04
  4. Step 4: Simplify right side
    999,985.96x = 787,068,389,142.09
  5. Step 5: Solve for x
    x = 787,068,389,142.09/999,985.96
  6. Step 6: Final answer
    x = 787,079.44

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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.