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Finding the Fourth Proportional to 910,554, 1,364,897.88 and 378,384

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Solution

The fourth proportional to 910,554, 1,364,897.88 and 378,384 is: 567,188.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,554 : 1,364,897.88 = 378,384 : x
  2. Step 2: Convert to fraction form
    910,554/1,364,897.88 = 378,384/x
  3. Step 3: Cross multiply
    910,554x = 1,364,897.88 × 378,384
  4. Step 4: Simplify right side
    910,554x = 516,455,519,425.92
  5. Step 5: Solve for x
    x = 516,455,519,425.92/910,554
  6. Step 6: Final answer
    x = 567,188.24

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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.