Home / 1,045,839.04-1,442,484.30-678,406.66

Finding the Fourth Proportional to 1,045,839.04, 1,442,484.30 and 678,406.66

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Solution

The fourth proportional to 1,045,839.04, 1,442,484.30 and 678,406.66 is: 935,699.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,045,839.04 : 1,442,484.30 = 678,406.66 : x
  2. Step 2: Convert to fraction form
    1,045,839.04/1,442,484.30 = 678,406.66/x
  3. Step 3: Cross multiply
    1,045,839.04x = 1,442,484.30 × 678,406.66
  4. Step 4: Simplify right side
    1,045,839.04x = 978,590,956,065.44
  5. Step 5: Solve for x
    x = 978,590,956,065.44/1,045,839.04
  6. Step 6: Final answer
    x = 935,699.39

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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.