Home / 420,241.44-579,829.68-256,856.16

Finding the Fourth Proportional to 420,241.44, 579,829.68 and 256,856.16

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Solution

The fourth proportional to 420,241.44, 579,829.68 and 256,856.16 is: 354,398.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,241.44 : 579,829.68 = 256,856.16 : x
  2. Step 2: Convert to fraction form
    420,241.44/579,829.68 = 256,856.16/x
  3. Step 3: Cross multiply
    420,241.44x = 579,829.68 × 256,856.16
  4. Step 4: Simplify right side
    420,241.44x = 148,932,825,058.83
  5. Step 5: Solve for x
    x = 148,932,825,058.83/420,241.44
  6. Step 6: Final answer
    x = 354,398.24

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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.