Home / 1,116,669.71-1,539,773.21-771,907.12

Finding the Fourth Proportional to 1,116,669.71, 1,539,773.21 and 771,907.12

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Solution

The fourth proportional to 1,116,669.71, 1,539,773.21 and 771,907.12 is: 1,064,380.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,116,669.71 : 1,539,773.21 = 771,907.12 : x
  2. Step 2: Convert to fraction form
    1,116,669.71/1,539,773.21 = 771,907.12/x
  3. Step 3: Cross multiply
    1,116,669.71x = 1,539,773.21 × 771,907.12
  4. Step 4: Simplify right side
    1,116,669.71x = 1,188,561,902,064.59
  5. Step 5: Solve for x
    x = 1,188,561,902,064.59/1,116,669.71
  6. Step 6: Final answer
    x = 1,064,380.89

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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.