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Finding the Fourth Proportional to 509,560.96, 703,390.08 and 339,733.12

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Solution

The fourth proportional to 509,560.96, 703,390.08 and 339,733.12 is: 468,962.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,560.96 : 703,390.08 = 339,733.12 : x
  2. Step 2: Convert to fraction form
    509,560.96/703,390.08 = 339,733.12/x
  3. Step 3: Cross multiply
    509,560.96x = 703,390.08 × 339,733.12
  4. Step 4: Simplify right side
    509,560.96x = 238,964,906,455.45
  5. Step 5: Solve for x
    x = 238,964,906,455.45/509,560.96
  6. Step 6: Final answer
    x = 468,962.35

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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.