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Finding the Fourth Proportional to 545,863.13, 753,296.18 and 300,856.62

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Solution

The fourth proportional to 545,863.13, 753,296.18 and 300,856.62 is: 415,184.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,863.13 : 753,296.18 = 300,856.62 : x
  2. Step 2: Convert to fraction form
    545,863.13/753,296.18 = 300,856.62/x
  3. Step 3: Cross multiply
    545,863.13x = 753,296.18 × 300,856.62
  4. Step 4: Simplify right side
    545,863.13x = 226,634,141,069.43
  5. Step 5: Solve for x
    x = 226,634,141,069.43/545,863.13
  6. Step 6: Final answer
    x = 415,184.93

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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.