Home / 812,873.16-1,121,750.25-450,295.89

Finding the Fourth Proportional to 812,873.16, 1,121,750.25 and 450,295.89

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Solution

The fourth proportional to 812,873.16, 1,121,750.25 and 450,295.89 is: 621,400.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,873.16 : 1,121,750.25 = 450,295.89 : x
  2. Step 2: Convert to fraction form
    812,873.16/1,121,750.25 = 450,295.89/x
  3. Step 3: Cross multiply
    812,873.16x = 1,121,750.25 × 450,295.89
  4. Step 4: Simplify right side
    812,873.16x = 505,119,527,181.47
  5. Step 5: Solve for x
    x = 505,119,527,181.47/812,873.16
  6. Step 6: Final answer
    x = 621,400.18

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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.