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Finding the Fourth Proportional to 703,607.36, 971,082.40 and 445,508.30

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Solution

The fourth proportional to 703,607.36, 971,082.40 and 445,508.30 is: 614,867.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,607.36 : 971,082.40 = 445,508.30 : x
  2. Step 2: Convert to fraction form
    703,607.36/971,082.40 = 445,508.30/x
  3. Step 3: Cross multiply
    703,607.36x = 971,082.40 × 445,508.30
  4. Step 4: Simplify right side
    703,607.36x = 432,625,269,183.92
  5. Step 5: Solve for x
    x = 432,625,269,183.92/703,607.36
  6. Step 6: Final answer
    x = 614,867.46

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1.5x scale

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.