Home / 822,406.40-1,233,829.12-349,118.72

Finding the Fourth Proportional to 822,406.40, 1,233,829.12 and 349,118.72

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Solution

The fourth proportional to 822,406.40, 1,233,829.12 and 349,118.72 is: 523,771.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,406.40 : 1,233,829.12 = 349,118.72 : x
  2. Step 2: Convert to fraction form
    822,406.40/1,233,829.12 = 349,118.72/x
  3. Step 3: Cross multiply
    822,406.40x = 1,233,829.12 × 349,118.72
  4. Step 4: Simplify right side
    822,406.40x = 430,752,843,073.13
  5. Step 5: Solve for x
    x = 430,752,843,073.13/822,406.40
  6. Step 6: Final answer
    x = 523,771.27

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1.5x scale

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.