Home / 829,857.08-1,145,217.48-490,324.52

Finding the Fourth Proportional to 829,857.08, 1,145,217.48 and 490,324.52

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Solution

The fourth proportional to 829,857.08, 1,145,217.48 and 490,324.52 is: 676,656.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,857.08 : 1,145,217.48 = 490,324.52 : x
  2. Step 2: Convert to fraction form
    829,857.08/1,145,217.48 = 490,324.52/x
  3. Step 3: Cross multiply
    829,857.08x = 1,145,217.48 × 490,324.52
  4. Step 4: Simplify right side
    829,857.08x = 561,528,211,176.61
  5. Step 5: Solve for x
    x = 561,528,211,176.61/829,857.08
  6. Step 6: Final answer
    x = 676,656.53

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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.