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Finding the Fourth Proportional to 540,418.60, 808,295.10 and 456,437.80

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Solution

The fourth proportional to 540,418.60, 808,295.10 and 456,437.80 is: 682,686.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,418.60 : 808,295.10 = 456,437.80 : x
  2. Step 2: Convert to fraction form
    540,418.60/808,295.10 = 456,437.80/x
  3. Step 3: Cross multiply
    540,418.60x = 808,295.10 × 456,437.80
  4. Step 4: Simplify right side
    540,418.60x = 368,936,437,194.78
  5. Step 5: Solve for x
    x = 368,936,437,194.78/540,418.60
  6. Step 6: Final answer
    x = 682,686.42

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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.