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Finding the Fourth Proportional to 802,652, 1,107,653.90 and 440,069.86

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Solution

The fourth proportional to 802,652, 1,107,653.90 and 440,069.86 is: 607,293.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,652 : 1,107,653.90 = 440,069.86 : x
  2. Step 2: Convert to fraction form
    802,652/1,107,653.90 = 440,069.86/x
  3. Step 3: Cross multiply
    802,652x = 1,107,653.90 × 440,069.86
  4. Step 4: Simplify right side
    802,652x = 487,445,096,701.45
  5. Step 5: Solve for x
    x = 487,445,096,701.45/802,652
  6. Step 6: Final answer
    x = 607,293.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.