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Finding the Fourth Proportional to 520,737.30, 780,911.55 and 362,495.70

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Solution

The fourth proportional to 520,737.30, 780,911.55 and 362,495.70 is: 543,608.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,737.30 : 780,911.55 = 362,495.70 : x
  2. Step 2: Convert to fraction form
    520,737.30/780,911.55 = 362,495.70/x
  3. Step 3: Cross multiply
    520,737.30x = 780,911.55 × 362,495.70
  4. Step 4: Simplify right side
    520,737.30x = 283,077,078,955.34
  5. Step 5: Solve for x
    x = 283,077,078,955.34/520,737.30
  6. Step 6: Final answer
    x = 543,608.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.