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Finding the Fourth Proportional to 1,143,897, 1,715,802.42 and 345,157.32

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Solution

The fourth proportional to 1,143,897, 1,715,802.42 and 345,157.32 is: 517,722.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,143,897 : 1,715,802.42 = 345,157.32 : x
  2. Step 2: Convert to fraction form
    1,143,897/1,715,802.42 = 345,157.32/x
  3. Step 3: Cross multiply
    1,143,897x = 1,715,802.42 × 345,157.32
  4. Step 4: Simplify right side
    1,143,897x = 592,221,764,936.71
  5. Step 5: Solve for x
    x = 592,221,764,936.71/1,143,897
  6. Step 6: Final answer
    x = 517,722.98

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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.