Home / 761,608.56-1,142,651.64-458,333.62

Finding the Fourth Proportional to 761,608.56, 1,142,651.64 and 458,333.62

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Solution

The fourth proportional to 761,608.56, 1,142,651.64 and 458,333.62 is: 687,644.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,608.56 : 1,142,651.64 = 458,333.62 : x
  2. Step 2: Convert to fraction form
    761,608.56/1,142,651.64 = 458,333.62/x
  3. Step 3: Cross multiply
    761,608.56x = 1,142,651.64 × 458,333.62
  4. Step 4: Simplify right side
    761,608.56x = 523,715,662,560.14
  5. Step 5: Solve for x
    x = 523,715,662,560.14/761,608.56
  6. Step 6: Final answer
    x = 687,644.14

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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.