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Finding the Fourth Proportional to 565,624.92, 780,560.46 and 310,975.32

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Solution

The fourth proportional to 565,624.92, 780,560.46 and 310,975.32 is: 429,144.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,624.92 : 780,560.46 = 310,975.32 : x
  2. Step 2: Convert to fraction form
    565,624.92/780,560.46 = 310,975.32/x
  3. Step 3: Cross multiply
    565,624.92x = 780,560.46 × 310,975.32
  4. Step 4: Simplify right side
    565,624.92x = 242,735,038,827.85
  5. Step 5: Solve for x
    x = 242,735,038,827.85/565,624.92
  6. Step 6: Final answer
    x = 429,144.88

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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.