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Finding the Fourth Proportional to 616,411.34, 850,650.80 and 344,483.78

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Solution

The fourth proportional to 616,411.34, 850,650.80 and 344,483.78 is: 475,389.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,411.34 : 850,650.80 = 344,483.78 : x
  2. Step 2: Convert to fraction form
    616,411.34/850,650.80 = 344,483.78/x
  3. Step 3: Cross multiply
    616,411.34x = 850,650.80 × 344,483.78
  4. Step 4: Simplify right side
    616,411.34x = 293,035,397,068.35
  5. Step 5: Solve for x
    x = 293,035,397,068.35/616,411.34
  6. Step 6: Final answer
    x = 475,389.37

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1.5x scale

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.