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Finding the Fourth Proportional to 768,696.40, 1,060,779 and 429,157.36

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Solution

The fourth proportional to 768,696.40, 1,060,779 and 429,157.36 is: 592,224.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,696.40 : 1,060,779 = 429,157.36 : x
  2. Step 2: Convert to fraction form
    768,696.40/1,060,779 = 429,157.36/x
  3. Step 3: Cross multiply
    768,696.40x = 1,060,779 × 429,157.36
  4. Step 4: Simplify right side
    768,696.40x = 455,241,115,183.44
  5. Step 5: Solve for x
    x = 455,241,115,183.44/768,696.40
  6. Step 6: Final answer
    x = 592,224.86

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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.