Home / 1,045,641-1,443,287.52-678,108.36

Finding the Fourth Proportional to 1,045,641, 1,443,287.52 and 678,108.36

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Solution

The fourth proportional to 1,045,641, 1,443,287.52 and 678,108.36 is: 935,986.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,045,641 : 1,443,287.52 = 678,108.36 : x
  2. Step 2: Convert to fraction form
    1,045,641/1,443,287.52 = 678,108.36/x
  3. Step 3: Cross multiply
    1,045,641x = 1,443,287.52 × 678,108.36
  4. Step 4: Simplify right side
    1,045,641x = 978,705,333,195.67
  5. Step 5: Solve for x
    x = 978,705,333,195.67/1,045,641
  6. Step 6: Final answer
    x = 935,986.00

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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.