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Finding the Fourth Proportional to 523,874.02, 723,033.12 and 309,066.88

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Solution

The fourth proportional to 523,874.02, 723,033.12 and 309,066.88 is: 426,563.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,874.02 : 723,033.12 = 309,066.88 : x
  2. Step 2: Convert to fraction form
    523,874.02/723,033.12 = 309,066.88/x
  3. Step 3: Cross multiply
    523,874.02x = 723,033.12 × 309,066.88
  4. Step 4: Simplify right side
    523,874.02x = 223,465,590,535.07
  5. Step 5: Solve for x
    x = 223,465,590,535.07/523,874.02
  6. Step 6: Final answer
    x = 426,563.60

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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.