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Finding the Fourth Proportional to 434,046.85, 650,973.08 and 285,330.85

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Solution

The fourth proportional to 434,046.85, 650,973.08 and 285,330.85 is: 427,932.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,046.85 : 650,973.08 = 285,330.85 : x
  2. Step 2: Convert to fraction form
    434,046.85/650,973.08 = 285,330.85/x
  3. Step 3: Cross multiply
    434,046.85x = 650,973.08 × 285,330.85
  4. Step 4: Simplify right side
    434,046.85x = 185,742,700,816.86
  5. Step 5: Solve for x
    x = 185,742,700,816.86/434,046.85
  6. Step 6: Final answer
    x = 427,932.38

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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.