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Finding the Fourth Proportional to 475,356.12, 712,554.39 and 297,987.72

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Solution

The fourth proportional to 475,356.12, 712,554.39 and 297,987.72 is: 446,680.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,356.12 : 712,554.39 = 297,987.72 : x
  2. Step 2: Convert to fraction form
    475,356.12/712,554.39 = 297,987.72/x
  3. Step 3: Cross multiply
    475,356.12x = 712,554.39 × 297,987.72
  4. Step 4: Simplify right side
    475,356.12x = 212,332,458,052.09
  5. Step 5: Solve for x
    x = 212,332,458,052.09/475,356.12
  6. Step 6: Final answer
    x = 446,680.81

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1.5x scale

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.