Home / 806,988.70-1,113,647.73-462,837.91

Finding the Fourth Proportional to 806,988.70, 1,113,647.73 and 462,837.91

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Solution

The fourth proportional to 806,988.70, 1,113,647.73 and 462,837.91 is: 638,718.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,988.70 : 1,113,647.73 = 462,837.91 : x
  2. Step 2: Convert to fraction form
    806,988.70/1,113,647.73 = 462,837.91/x
  3. Step 3: Cross multiply
    806,988.70x = 1,113,647.73 × 462,837.91
  4. Step 4: Simplify right side
    806,988.70x = 515,438,387,829.44
  5. Step 5: Solve for x
    x = 515,438,387,829.44/806,988.70
  6. Step 6: Final answer
    x = 638,718.22

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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.