Home / 1,287,837.63-1,777,127.01-714,832.68

Finding the Fourth Proportional to 1,287,837.63, 1,777,127.01 and 714,832.68

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Solution

The fourth proportional to 1,287,837.63, 1,777,127.01 and 714,832.68 is: 986,419.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,837.63 : 1,777,127.01 = 714,832.68 : x
  2. Step 2: Convert to fraction form
    1,287,837.63/1,777,127.01 = 714,832.68/x
  3. Step 3: Cross multiply
    1,287,837.63x = 1,777,127.01 × 714,832.68
  4. Step 4: Simplify right side
    1,287,837.63x = 1,270,348,463,258.69
  5. Step 5: Solve for x
    x = 1,270,348,463,258.69/1,287,837.63
  6. Step 6: Final answer
    x = 986,419.74

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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.