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Finding the Fourth Proportional to 453,678.30, 680,484.65 and 216,957.42

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Solution

The fourth proportional to 453,678.30, 680,484.65 and 216,957.42 is: 325,420.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,678.30 : 680,484.65 = 216,957.42 : x
  2. Step 2: Convert to fraction form
    453,678.30/680,484.65 = 216,957.42/x
  3. Step 3: Cross multiply
    453,678.30x = 680,484.65 × 216,957.42
  4. Step 4: Simplify right side
    453,678.30x = 147,636,192,928.82
  5. Step 5: Solve for x
    x = 147,636,192,928.82/453,678.30
  6. Step 6: Final answer
    x = 325,420.44

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