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Finding the Fourth Proportional to 615,109.87, 848,832.38 and 360,630.55

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Solution

The fourth proportional to 615,109.87, 848,832.38 and 360,630.55 is: 497,658.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,109.87 : 848,832.38 = 360,630.55 : x
  2. Step 2: Convert to fraction form
    615,109.87/848,832.38 = 360,630.55/x
  3. Step 3: Cross multiply
    615,109.87x = 848,832.38 × 360,630.55
  4. Step 4: Simplify right side
    615,109.87x = 306,114,886,254.06
  5. Step 5: Solve for x
    x = 306,114,886,254.06/615,109.87
  6. Step 6: Final answer
    x = 497,658.88

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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.