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Finding the Fourth Proportional to 565,596.32, 780,502.97 and 310,945.55

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Solution

The fourth proportional to 565,596.32, 780,502.97 and 310,945.55 is: 429,093.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,596.32 : 780,502.97 = 310,945.55 : x
  2. Step 2: Convert to fraction form
    565,596.32/780,502.97 = 310,945.55/x
  3. Step 3: Cross multiply
    565,596.32x = 780,502.97 × 310,945.55
  4. Step 4: Simplify right side
    565,596.32x = 242,693,922,158.13
  5. Step 5: Solve for x
    x = 242,693,922,158.13/565,596.32
  6. Step 6: Final answer
    x = 429,093.89

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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.