Home / 822,100.80-1,232,403.88-316,339.12

Finding the Fourth Proportional to 822,100.80, 1,232,403.88 and 316,339.12

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Solution

The fourth proportional to 822,100.80, 1,232,403.88 and 316,339.12 is: 474,221.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,100.80 : 1,232,403.88 = 316,339.12 : x
  2. Step 2: Convert to fraction form
    822,100.80/1,232,403.88 = 316,339.12/x
  3. Step 3: Cross multiply
    822,100.80x = 1,232,403.88 × 316,339.12
  4. Step 4: Simplify right side
    822,100.80x = 389,857,558,883.79
  5. Step 5: Solve for x
    x = 389,857,558,883.79/822,100.80
  6. Step 6: Final answer
    x = 474,221.12

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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.