Home / 843,145.48-1,264,720.38-344,509.48

Finding the Fourth Proportional to 843,145.48, 1,264,720.38 and 344,509.48

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Solution

The fourth proportional to 843,145.48, 1,264,720.38 and 344,509.48 is: 516,765.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    843,145.48 : 1,264,720.38 = 344,509.48 : x
  2. Step 2: Convert to fraction form
    843,145.48/1,264,720.38 = 344,509.48/x
  3. Step 3: Cross multiply
    843,145.48x = 1,264,720.38 × 344,509.48
  4. Step 4: Simplify right side
    843,145.48x = 435,708,160,459.20
  5. Step 5: Solve for x
    x = 435,708,160,459.20/843,145.48
  6. Step 6: Final answer
    x = 516,765.10

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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.