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Finding the Fourth Proportional to 523,899.84, 723,069.12 and 309,093.12

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Solution

The fourth proportional to 523,899.84, 723,069.12 and 309,093.12 is: 426,600.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,899.84 : 723,069.12 = 309,093.12 : x
  2. Step 2: Convert to fraction form
    523,899.84/723,069.12 = 309,093.12/x
  3. Step 3: Cross multiply
    523,899.84x = 723,069.12 × 309,093.12
  4. Step 4: Simplify right side
    523,899.84x = 223,495,690,276.45
  5. Step 5: Solve for x
    x = 223,495,690,276.45/523,899.84
  6. Step 6: Final answer
    x = 426,600.04

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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.