Home / 876,829.20-1,312,619.40-824,924.40

Finding the Fourth Proportional to 876,829.20, 1,312,619.40 and 824,924.40

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Solution

The fourth proportional to 876,829.20, 1,312,619.40 and 824,924.40 is: 1,234,917.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,829.20 : 1,312,619.40 = 824,924.40 : x
  2. Step 2: Convert to fraction form
    876,829.20/1,312,619.40 = 824,924.40/x
  3. Step 3: Cross multiply
    876,829.20x = 1,312,619.40 × 824,924.40
  4. Step 4: Simplify right side
    876,829.20x = 1,082,811,770,973.36
  5. Step 5: Solve for x
    x = 1,082,811,770,973.36/876,829.20
  6. Step 6: Final answer
    x = 1,234,917.55

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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.