Home / 543,125.32-749,513.35-301,408.05

Finding the Fourth Proportional to 543,125.32, 749,513.35 and 301,408.05

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Solution

The fourth proportional to 543,125.32, 749,513.35 and 301,408.05 is: 415,943.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,125.32 : 749,513.35 = 301,408.05 : x
  2. Step 2: Convert to fraction form
    543,125.32/749,513.35 = 301,408.05/x
  3. Step 3: Cross multiply
    543,125.32x = 749,513.35 × 301,408.05
  4. Step 4: Simplify right side
    543,125.32x = 225,909,360,459.90
  5. Step 5: Solve for x
    x = 225,909,360,459.90/543,125.32
  6. Step 6: Final answer
    x = 415,943.34

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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.