Home / 843,145.73-1,264,720.76-344,509.73

Finding the Fourth Proportional to 843,145.73, 1,264,720.76 and 344,509.73

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Solution

The fourth proportional to 843,145.73, 1,264,720.76 and 344,509.73 is: 516,765.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    843,145.73 : 1,264,720.76 = 344,509.73 : x
  2. Step 2: Convert to fraction form
    843,145.73/1,264,720.76 = 344,509.73/x
  3. Step 3: Cross multiply
    843,145.73x = 1,264,720.76 × 344,509.73
  4. Step 4: Simplify right side
    843,145.73x = 435,708,605,830.45
  5. Step 5: Solve for x
    x = 435,708,605,830.45/843,145.73
  6. Step 6: Final answer
    x = 516,765.48

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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.