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Finding the Fourth Proportional to 635,862.40, 877,566.40 and 381,353.60

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Solution

The fourth proportional to 635,862.40, 877,566.40 and 381,353.60 is: 526,313.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,862.40 : 877,566.40 = 381,353.60 : x
  2. Step 2: Convert to fraction form
    635,862.40/877,566.40 = 381,353.60/x
  3. Step 3: Cross multiply
    635,862.40x = 877,566.40 × 381,353.60
  4. Step 4: Simplify right side
    635,862.40x = 334,663,105,879.04
  5. Step 5: Solve for x
    x = 334,663,105,879.04/635,862.40
  6. Step 6: Final answer
    x = 526,313.72

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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.