Home / 1,345,516.92-2,017,931.54-398,666.21

Finding the Fourth Proportional to 1,345,516.92, 2,017,931.54 and 398,666.21

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Solution

The fourth proportional to 1,345,516.92, 2,017,931.54 and 398,666.21 is: 597,897.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345,516.92 : 2,017,931.54 = 398,666.21 : x
  2. Step 2: Convert to fraction form
    1,345,516.92/2,017,931.54 = 398,666.21/x
  3. Step 3: Cross multiply
    1,345,516.92x = 2,017,931.54 × 398,666.21
  4. Step 4: Simplify right side
    1,345,516.92x = 804,481,107,008.28
  5. Step 5: Solve for x
    x = 804,481,107,008.28/1,345,516.92
  6. Step 6: Final answer
    x = 597,897.43

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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.