Home / 1,992,330.80-2,987,457.96-712,444.88

Finding the Fourth Proportional to 1,992,330.80, 2,987,457.96 and 712,444.88

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Solution

The fourth proportional to 1,992,330.80, 2,987,457.96 and 712,444.88 is: 1,068,296.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992,330.80 : 2,987,457.96 = 712,444.88 : x
  2. Step 2: Convert to fraction form
    1,992,330.80/2,987,457.96 = 712,444.88/x
  3. Step 3: Cross multiply
    1,992,330.80x = 2,987,457.96 × 712,444.88
  4. Step 4: Simplify right side
    1,992,330.80x = 2,128,399,127,817.25
  5. Step 5: Solve for x
    x = 2,128,399,127,817.25/1,992,330.80
  6. Step 6: Final answer
    x = 1,068,296.05

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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.