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Finding the Fourth Proportional to 565,801.16, 780,790.03 and 311,152.35

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Solution

The fourth proportional to 565,801.16, 780,790.03 and 311,152.35 is: 429,381.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,801.16 : 780,790.03 = 311,152.35 : x
  2. Step 2: Convert to fraction form
    565,801.16/780,790.03 = 311,152.35/x
  3. Step 3: Cross multiply
    565,801.16x = 780,790.03 × 311,152.35
  4. Step 4: Simplify right side
    565,801.16x = 242,944,652,691.07
  5. Step 5: Solve for x
    x = 242,944,652,691.07/565,801.16
  6. Step 6: Final answer
    x = 429,381.68

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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.