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Finding the Fourth Proportional to 647,670.40, 969,950.40 and 523,254.40

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Solution

The fourth proportional to 647,670.40, 969,950.40 and 523,254.40 is: 783,625.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,670.40 : 969,950.40 = 523,254.40 : x
  2. Step 2: Convert to fraction form
    647,670.40/969,950.40 = 523,254.40/x
  3. Step 3: Cross multiply
    647,670.40x = 969,950.40 × 523,254.40
  4. Step 4: Simplify right side
    647,670.40x = 507,530,814,581.76
  5. Step 5: Solve for x
    x = 507,530,814,581.76/647,670.40
  6. Step 6: Final answer
    x = 783,625.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.