Home / 838,462.68-1,157,078.66-456,489.48

Finding the Fourth Proportional to 838,462.68, 1,157,078.66 and 456,489.48

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Solution

The fourth proportional to 838,462.68, 1,157,078.66 and 456,489.48 is: 629,955.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,462.68 : 1,157,078.66 = 456,489.48 : x
  2. Step 2: Convert to fraction form
    838,462.68/1,157,078.66 = 456,489.48/x
  3. Step 3: Cross multiply
    838,462.68x = 1,157,078.66 × 456,489.48
  4. Step 4: Simplify right side
    838,462.68x = 528,194,235,822.50
  5. Step 5: Solve for x
    x = 528,194,235,822.50/838,462.68
  6. Step 6: Final answer
    x = 629,955.57

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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.