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Finding the Fourth Proportional to 668,036.43, 921,888.14 and 362,114.01

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Solution

The fourth proportional to 668,036.43, 921,888.14 and 362,114.01 is: 499,716.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,036.43 : 921,888.14 = 362,114.01 : x
  2. Step 2: Convert to fraction form
    668,036.43/921,888.14 = 362,114.01/x
  3. Step 3: Cross multiply
    668,036.43x = 921,888.14 × 362,114.01
  4. Step 4: Simplify right side
    668,036.43x = 333,828,609,336.27
  5. Step 5: Solve for x
    x = 333,828,609,336.27/668,036.43
  6. Step 6: Final answer
    x = 499,716.17

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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.