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Finding the Fourth Proportional to 614,550.66, 847,433.25 and 485,274.66

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Solution

The fourth proportional to 614,550.66, 847,433.25 and 485,274.66 is: 669,168.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,550.66 : 847,433.25 = 485,274.66 : x
  2. Step 2: Convert to fraction form
    614,550.66/847,433.25 = 485,274.66/x
  3. Step 3: Cross multiply
    614,550.66x = 847,433.25 × 485,274.66
  4. Step 4: Simplify right side
    614,550.66x = 411,237,882,266.45
  5. Step 5: Solve for x
    x = 411,237,882,266.45/614,550.66
  6. Step 6: Final answer
    x = 669,168.40

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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.