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Finding the Fourth Proportional to 626,838.88, 865,037.64 and 358,566.88

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Solution

The fourth proportional to 626,838.88, 865,037.64 and 358,566.88 is: 494,822.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,838.88 : 865,037.64 = 358,566.88 : x
  2. Step 2: Convert to fraction form
    626,838.88/865,037.64 = 358,566.88/x
  3. Step 3: Cross multiply
    626,838.88x = 865,037.64 × 358,566.88
  4. Step 4: Simplify right side
    626,838.88x = 310,173,847,657.36
  5. Step 5: Solve for x
    x = 310,173,847,657.36/626,838.88
  6. Step 6: Final answer
    x = 494,822.29

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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.