Home / 750,042.45-1,035,061.31-405,878.34

Finding the Fourth Proportional to 750,042.45, 1,035,061.31 and 405,878.34

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Solution

The fourth proportional to 750,042.45, 1,035,061.31 and 405,878.34 is: 560,113.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,042.45 : 1,035,061.31 = 405,878.34 : x
  2. Step 2: Convert to fraction form
    750,042.45/1,035,061.31 = 405,878.34/x
  3. Step 3: Cross multiply
    750,042.45x = 1,035,061.31 × 405,878.34
  4. Step 4: Simplify right side
    750,042.45x = 420,108,964,062.29
  5. Step 5: Solve for x
    x = 420,108,964,062.29/750,042.45
  6. Step 6: Final answer
    x = 560,113.58

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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.