Home / 1,287,513.44-1,775,534.28-771,184.88

Finding the Fourth Proportional to 1,287,513.44, 1,775,534.28 and 771,184.88

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Solution

The fourth proportional to 1,287,513.44, 1,775,534.28 and 771,184.88 is: 1,063,495.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,513.44 : 1,775,534.28 = 771,184.88 : x
  2. Step 2: Convert to fraction form
    1,287,513.44/1,775,534.28 = 771,184.88/x
  3. Step 3: Cross multiply
    1,287,513.44x = 1,775,534.28 × 771,184.88
  4. Step 4: Simplify right side
    1,287,513.44x = 1,369,265,190,657.69
  5. Step 5: Solve for x
    x = 1,369,265,190,657.69/1,287,513.44
  6. Step 6: Final answer
    x = 1,063,495.84

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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.