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Finding the Fourth Proportional to 615,065.32, 848,512.38 and 360,308.80

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Solution

The fourth proportional to 615,065.32, 848,512.38 and 360,308.80 is: 497,063.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,065.32 : 848,512.38 = 360,308.80 : x
  2. Step 2: Convert to fraction form
    615,065.32/848,512.38 = 360,308.80/x
  3. Step 3: Cross multiply
    615,065.32x = 848,512.38 × 360,308.80
  4. Step 4: Simplify right side
    615,065.32x = 305,726,477,422.94
  5. Step 5: Solve for x
    x = 305,726,477,422.94/615,065.32
  6. Step 6: Final answer
    x = 497,063.43

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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.