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Finding the Fourth Proportional to 626,844, 865,044.72 and 358,572

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Solution

The fourth proportional to 626,844, 865,044.72 and 358,572 is: 494,829.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,844 : 865,044.72 = 358,572 : x
  2. Step 2: Convert to fraction form
    626,844/865,044.72 = 358,572/x
  3. Step 3: Cross multiply
    626,844x = 865,044.72 × 358,572
  4. Step 4: Simplify right side
    626,844x = 310,180,815,339.84
  5. Step 5: Solve for x
    x = 310,180,815,339.84/626,844
  6. Step 6: Final answer
    x = 494,829.36

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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.