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Finding the Fourth Proportional to 719,806.16, 1,080,373.45 and 365,069.30

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Solution

The fourth proportional to 719,806.16, 1,080,373.45 and 365,069.30 is: 547,940.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,806.16 : 1,080,373.45 = 365,069.30 : x
  2. Step 2: Convert to fraction form
    719,806.16/1,080,373.45 = 365,069.30/x
  3. Step 3: Cross multiply
    719,806.16x = 1,080,373.45 × 365,069.30
  4. Step 4: Simplify right side
    719,806.16x = 394,411,179,130.09
  5. Step 5: Solve for x
    x = 394,411,179,130.09/719,806.16
  6. Step 6: Final answer
    x = 547,940.82

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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.