Home / 812,036.86-1,120,582.29-449,461.42

Finding the Fourth Proportional to 812,036.86, 1,120,582.29 and 449,461.42

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Solution

The fourth proportional to 812,036.86, 1,120,582.29 and 449,461.42 is: 620,240.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,036.86 : 1,120,582.29 = 449,461.42 : x
  2. Step 2: Convert to fraction form
    812,036.86/1,120,582.29 = 449,461.42/x
  3. Step 3: Cross multiply
    812,036.86x = 1,120,582.29 × 449,461.42
  4. Step 4: Simplify right side
    812,036.86x = 503,658,507,290.25
  5. Step 5: Solve for x
    x = 503,658,507,290.25/812,036.86
  6. Step 6: Final answer
    x = 620,240.94

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1.5x scale

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.