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Finding the Fourth Proportional to 539,505.52, 744,406.48 and 310,018.48

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Solution

The fourth proportional to 539,505.52, 744,406.48 and 310,018.48 is: 427,761.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,505.52 : 744,406.48 = 310,018.48 : x
  2. Step 2: Convert to fraction form
    539,505.52/744,406.48 = 310,018.48/x
  3. Step 3: Cross multiply
    539,505.52x = 744,406.48 × 310,018.48
  4. Step 4: Simplify right side
    539,505.52x = 230,779,765,431.75
  5. Step 5: Solve for x
    x = 230,779,765,431.75/539,505.52
  6. Step 6: Final answer
    x = 427,761.64

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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.