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Finding the Fourth Proportional to 565,871.04, 780,926.76 and 311,231.52

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Solution

The fourth proportional to 565,871.04, 780,926.76 and 311,231.52 is: 429,513.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,871.04 : 780,926.76 = 311,231.52 : x
  2. Step 2: Convert to fraction form
    565,871.04/780,926.76 = 311,231.52/x
  3. Step 3: Cross multiply
    565,871.04x = 780,926.76 × 311,231.52
  4. Step 4: Simplify right side
    565,871.04x = 243,049,022,523.48
  5. Step 5: Solve for x
    x = 243,049,022,523.48/565,871.04
  6. Step 6: Final answer
    x = 429,513.10

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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.