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Finding the Fourth Proportional to 545,427.95, 752,683.38 and 300,408

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Solution

The fourth proportional to 545,427.95, 752,683.38 and 300,408 is: 414,559.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,427.95 : 752,683.38 = 300,408 : x
  2. Step 2: Convert to fraction form
    545,427.95/752,683.38 = 300,408/x
  3. Step 3: Cross multiply
    545,427.95x = 752,683.38 × 300,408
  4. Step 4: Simplify right side
    545,427.95x = 226,112,108,819.04
  5. Step 5: Solve for x
    x = 226,112,108,819.04/545,427.95
  6. Step 6: Final answer
    x = 414,559.08

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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.