Home / 1,061,756.64-1,465,544.34-722,421.72

Finding the Fourth Proportional to 1,061,756.64, 1,465,544.34 and 722,421.72

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Solution

The fourth proportional to 1,061,756.64, 1,465,544.34 and 722,421.72 is: 997,159.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,061,756.64 : 1,465,544.34 = 722,421.72 : x
  2. Step 2: Convert to fraction form
    1,061,756.64/1,465,544.34 = 722,421.72/x
  3. Step 3: Cross multiply
    1,061,756.64x = 1,465,544.34 × 722,421.72
  4. Step 4: Simplify right side
    1,061,756.64x = 1,058,741,062,839.06
  5. Step 5: Solve for x
    x = 1,058,741,062,839.06/1,061,756.64
  6. Step 6: Final answer
    x = 997,159.82

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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.