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Finding the Fourth Proportional to 626,682, 864,822.24 and 358,410

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Solution

The fourth proportional to 626,682, 864,822.24 and 358,410 is: 494,606.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,682 : 864,822.24 = 358,410 : x
  2. Step 2: Convert to fraction form
    626,682/864,822.24 = 358,410/x
  3. Step 3: Cross multiply
    626,682x = 864,822.24 × 358,410
  4. Step 4: Simplify right side
    626,682x = 309,960,939,038.40
  5. Step 5: Solve for x
    x = 309,960,939,038.40/626,682
  6. Step 6: Final answer
    x = 494,606.42

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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.