Home / 1,379,572.61-1,903,796.42-767,714.90

Finding the Fourth Proportional to 1,379,572.61, 1,903,796.42 and 767,714.90

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Solution

The fourth proportional to 1,379,572.61, 1,903,796.42 and 767,714.90 is: 1,059,438.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379,572.61 : 1,903,796.42 = 767,714.90 : x
  2. Step 2: Convert to fraction form
    1,379,572.61/1,903,796.42 = 767,714.90/x
  3. Step 3: Cross multiply
    1,379,572.61x = 1,903,796.42 × 767,714.90
  4. Step 4: Simplify right side
    1,379,572.61x = 1,461,572,878,200.66
  5. Step 5: Solve for x
    x = 1,461,572,878,200.66/1,379,572.61
  6. Step 6: Final answer
    x = 1,059,438.89

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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.