Home / 763,259.67-1,145,021.45-257,824.31

Finding the Fourth Proportional to 763,259.67, 1,145,021.45 and 257,824.31

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Solution

The fourth proportional to 763,259.67, 1,145,021.45 and 257,824.31 is: 386,781.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,259.67 : 1,145,021.45 = 257,824.31 : x
  2. Step 2: Convert to fraction form
    763,259.67/1,145,021.45 = 257,824.31/x
  3. Step 3: Cross multiply
    763,259.67x = 1,145,021.45 × 257,824.31
  4. Step 4: Simplify right side
    763,259.67x = 295,214,358,267.22
  5. Step 5: Solve for x
    x = 295,214,358,267.22/763,259.67
  6. Step 6: Final answer
    x = 386,781.03

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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.