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Finding the Fourth Proportional to 700,632.95, 966,944.88 and 428,880.42

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Solution

The fourth proportional to 700,632.95, 966,944.88 and 428,880.42 is: 591,898.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,632.95 : 966,944.88 = 428,880.42 : x
  2. Step 2: Convert to fraction form
    700,632.95/966,944.88 = 428,880.42/x
  3. Step 3: Cross multiply
    700,632.95x = 966,944.88 × 428,880.42
  4. Step 4: Simplify right side
    700,632.95x = 414,703,726,251.25
  5. Step 5: Solve for x
    x = 414,703,726,251.25/700,632.95
  6. Step 6: Final answer
    x = 591,898.70

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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.