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Finding the Fourth Proportional to 453,698.93, 680,515.57 and 216,978.05

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Solution

The fourth proportional to 453,698.93, 680,515.57 and 216,978.05 is: 325,451.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,698.93 : 680,515.57 = 216,978.05 : x
  2. Step 2: Convert to fraction form
    453,698.93/680,515.57 = 216,978.05/x
  3. Step 3: Cross multiply
    453,698.93x = 680,515.57 × 216,978.05
  4. Step 4: Simplify right side
    453,698.93x = 147,656,941,373.24
  5. Step 5: Solve for x
    x = 147,656,941,373.24/453,698.93
  6. Step 6: Final answer
    x = 325,451.38

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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.