Home / 1,170,998.43-1,615,956.81-661,689.87

Finding the Fourth Proportional to 1,170,998.43, 1,615,956.81 and 661,689.87

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Solution

The fourth proportional to 1,170,998.43, 1,615,956.81 and 661,689.87 is: 913,120.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,170,998.43 : 1,615,956.81 = 661,689.87 : x
  2. Step 2: Convert to fraction form
    1,170,998.43/1,615,956.81 = 661,689.87/x
  3. Step 3: Cross multiply
    1,170,998.43x = 1,615,956.81 × 661,689.87
  4. Step 4: Simplify right side
    1,170,998.43x = 1,069,262,251,534.51
  5. Step 5: Solve for x
    x = 1,069,262,251,534.51/1,170,998.43
  6. Step 6: Final answer
    x = 913,120.14

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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.