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Finding the Fourth Proportional to 545,830.40, 819,037.20 and 246,357.20

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Solution

The fourth proportional to 545,830.40, 819,037.20 and 246,357.20 is: 369,667.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,830.40 : 819,037.20 = 246,357.20 : x
  2. Step 2: Convert to fraction form
    545,830.40/819,037.20 = 246,357.20/x
  3. Step 3: Cross multiply
    545,830.40x = 819,037.20 × 246,357.20
  4. Step 4: Simplify right side
    545,830.40x = 201,775,711,287.84
  5. Step 5: Solve for x
    x = 201,775,711,287.84/545,830.40
  6. Step 6: Final answer
    x = 369,667.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.