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Finding the Fourth Proportional to 545,862.63, 753,295.49 and 300,856.12

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Solution

The fourth proportional to 545,862.63, 753,295.49 and 300,856.12 is: 415,184.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,862.63 : 753,295.49 = 300,856.12 : x
  2. Step 2: Convert to fraction form
    545,862.63/753,295.49 = 300,856.12/x
  3. Step 3: Cross multiply
    545,862.63x = 753,295.49 × 300,856.12
  4. Step 4: Simplify right side
    545,862.63x = 226,633,558,334.90
  5. Step 5: Solve for x
    x = 226,633,558,334.90/545,862.63
  6. Step 6: Final answer
    x = 415,184.23

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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.