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Finding the Fourth Proportional to 565,803.33, 780,793.02 and 311,154.51

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Solution

The fourth proportional to 565,803.33, 780,793.02 and 311,154.51 is: 429,384.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,803.33 : 780,793.02 = 311,154.51 : x
  2. Step 2: Convert to fraction form
    565,803.33/780,793.02 = 311,154.51/x
  3. Step 3: Cross multiply
    565,803.33x = 780,793.02 × 311,154.51
  4. Step 4: Simplify right side
    565,803.33x = 242,947,272,477.49
  5. Step 5: Solve for x
    x = 242,947,272,477.49/565,803.33
  6. Step 6: Final answer
    x = 429,384.67

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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.