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Finding the Fourth Proportional to 719,593, 993,052.74 and 397,303.72

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Solution

The fourth proportional to 719,593, 993,052.74 and 397,303.72 is: 548,287.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,593 : 993,052.74 = 397,303.72 : x
  2. Step 2: Convert to fraction form
    719,593/993,052.74 = 397,303.72/x
  3. Step 3: Cross multiply
    719,593x = 993,052.74 × 397,303.72
  4. Step 4: Simplify right side
    719,593x = 394,543,547,758.19
  5. Step 5: Solve for x
    x = 394,543,547,758.19/719,593
  6. Step 6: Final answer
    x = 548,287.08

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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.