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Finding the Fourth Proportional to 670,305.60, 925,011.36 and 368,493.12

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Solution

The fourth proportional to 670,305.60, 925,011.36 and 368,493.12 is: 508,514.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,305.60 : 925,011.36 = 368,493.12 : x
  2. Step 2: Convert to fraction form
    670,305.60/925,011.36 = 368,493.12/x
  3. Step 3: Cross multiply
    670,305.60x = 925,011.36 × 368,493.12
  4. Step 4: Simplify right side
    670,305.60x = 340,860,322,081.84
  5. Step 5: Solve for x
    x = 340,860,322,081.84/670,305.60
  6. Step 6: Final answer
    x = 508,514.81

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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.