Home / 1,145,177.76-1,579,990.92-661,566.45

Finding the Fourth Proportional to 1,145,177.76, 1,579,990.92 and 661,566.45

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Solution

The fourth proportional to 1,145,177.76, 1,579,990.92 and 661,566.45 is: 912,756.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,177.76 : 1,579,990.92 = 661,566.45 : x
  2. Step 2: Convert to fraction form
    1,145,177.76/1,579,990.92 = 661,566.45/x
  3. Step 3: Cross multiply
    1,145,177.76x = 1,579,990.92 × 661,566.45
  4. Step 4: Simplify right side
    1,145,177.76x = 1,045,268,983,976.63
  5. Step 5: Solve for x
    x = 1,045,268,983,976.63/1,145,177.76
  6. Step 6: Final answer
    x = 912,756.97

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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.