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Finding the Fourth Proportional to 565,800.92, 780,789.69 and 311,152.10

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Solution

The fourth proportional to 565,800.92, 780,789.69 and 311,152.10 is: 429,381.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,800.92 : 780,789.69 = 311,152.10 : x
  2. Step 2: Convert to fraction form
    565,800.92/780,789.69 = 311,152.10/x
  3. Step 3: Cross multiply
    565,800.92x = 780,789.69 × 311,152.10
  4. Step 4: Simplify right side
    565,800.92x = 242,944,353,653.82
  5. Step 5: Solve for x
    x = 242,944,353,653.82/565,800.92
  6. Step 6: Final answer
    x = 429,381.34

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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.