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Finding the Fourth Proportional to 545,453.76, 752,082.12 and 373,455.12

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Solution

The fourth proportional to 545,453.76, 752,082.12 and 373,455.12 is: 514,927.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,453.76 : 752,082.12 = 373,455.12 : x
  2. Step 2: Convert to fraction form
    545,453.76/752,082.12 = 373,455.12/x
  3. Step 3: Cross multiply
    545,453.76x = 752,082.12 × 373,455.12
  4. Step 4: Simplify right side
    545,453.76x = 280,868,918,374.45
  5. Step 5: Solve for x
    x = 280,868,918,374.45/545,453.76
  6. Step 6: Final answer
    x = 514,927.09

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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.