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Finding the Fourth Proportional to 635,752.40, 877,124.32 and 360,072.64

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Solution

The fourth proportional to 635,752.40, 877,124.32 and 360,072.64 is: 496,779.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,752.40 : 877,124.32 = 360,072.64 : x
  2. Step 2: Convert to fraction form
    635,752.40/877,124.32 = 360,072.64/x
  3. Step 3: Cross multiply
    635,752.40x = 877,124.32 × 360,072.64
  4. Step 4: Simplify right side
    635,752.40x = 315,828,469,510.61
  5. Step 5: Solve for x
    x = 315,828,469,510.61/635,752.40
  6. Step 6: Final answer
    x = 496,779.04

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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.