Home / 918,827-1,267,982.31-510,920.09

Finding the Fourth Proportional to 918,827, 1,267,982.31 and 510,920.09

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Solution

The fourth proportional to 918,827, 1,267,982.31 and 510,920.09 is: 705,070.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,827 : 1,267,982.31 = 510,920.09 : x
  2. Step 2: Convert to fraction form
    918,827/1,267,982.31 = 510,920.09/x
  3. Step 3: Cross multiply
    918,827x = 1,267,982.31 × 510,920.09
  4. Step 4: Simplify right side
    918,827x = 647,837,635,943.61
  5. Step 5: Solve for x
    x = 647,837,635,943.61/918,827
  6. Step 6: Final answer
    x = 705,070.31

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.