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Finding the Fourth Proportional to 614,784.60, 848,401.07 and 342,852.78

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Solution

The fourth proportional to 614,784.60, 848,401.07 and 342,852.78 is: 473,135.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,784.60 : 848,401.07 = 342,852.78 : x
  2. Step 2: Convert to fraction form
    614,784.60/848,401.07 = 342,852.78/x
  3. Step 3: Cross multiply
    614,784.60x = 848,401.07 × 342,852.78
  4. Step 4: Simplify right side
    614,784.60x = 290,876,663,690.21
  5. Step 5: Solve for x
    x = 290,876,663,690.21/614,784.60
  6. Step 6: Final answer
    x = 473,135.90

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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.