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Finding the Fourth Proportional to 479,701.50, 662,065.83 and 278,614.14

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Solution

The fourth proportional to 479,701.50, 662,065.83 and 278,614.14 is: 384,532.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,701.50 : 662,065.83 = 278,614.14 : x
  2. Step 2: Convert to fraction form
    479,701.50/662,065.83 = 278,614.14/x
  3. Step 3: Cross multiply
    479,701.50x = 662,065.83 × 278,614.14
  4. Step 4: Simplify right side
    479,701.50x = 184,460,901,848.84
  5. Step 5: Solve for x
    x = 184,460,901,848.84/479,701.50
  6. Step 6: Final answer
    x = 384,532.68

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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.