Home / 916,933.96-1,265,305.35-509,003.56

Finding the Fourth Proportional to 916,933.96, 1,265,305.35 and 509,003.56

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Solution

The fourth proportional to 916,933.96, 1,265,305.35 and 509,003.56 is: 702,389.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,933.96 : 1,265,305.35 = 509,003.56 : x
  2. Step 2: Convert to fraction form
    916,933.96/1,265,305.35 = 509,003.56/x
  3. Step 3: Cross multiply
    916,933.96x = 1,265,305.35 × 509,003.56
  4. Step 4: Simplify right side
    916,933.96x = 644,044,927,637.05
  5. Step 5: Solve for x
    x = 644,044,927,637.05/916,933.96
  6. Step 6: Final answer
    x = 702,389.65

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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.