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Finding the Fourth Proportional to 702,479.21, 969,184.55 and 457,352.01

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Solution

The fourth proportional to 702,479.21, 969,184.55 and 457,352.01 is: 630,991.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,479.21 : 969,184.55 = 457,352.01 : x
  2. Step 2: Convert to fraction form
    702,479.21/969,184.55 = 457,352.01/x
  3. Step 3: Cross multiply
    702,479.21x = 969,184.55 × 457,352.01
  4. Step 4: Simplify right side
    702,479.21x = 443,258,499,716.69
  5. Step 5: Solve for x
    x = 443,258,499,716.69/702,479.21
  6. Step 6: Final answer
    x = 630,991.63

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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.