Home / 1,288,126.74-1,777,532.64-715,166.76

Finding the Fourth Proportional to 1,288,126.74, 1,777,532.64 and 715,166.76

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Solution

The fourth proportional to 1,288,126.74, 1,777,532.64 and 715,166.76 is: 986,884.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,126.74 : 1,777,532.64 = 715,166.76 : x
  2. Step 2: Convert to fraction form
    1,288,126.74/1,777,532.64 = 715,166.76/x
  3. Step 3: Cross multiply
    1,288,126.74x = 1,777,532.64 × 715,166.76
  4. Step 4: Simplify right side
    1,288,126.74x = 1,271,232,258,943.05
  5. Step 5: Solve for x
    x = 1,271,232,258,943.05/1,288,126.74
  6. Step 6: Final answer
    x = 986,884.46

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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.