Home / 848,342.40-1,272,076.20-315,589.20

Finding the Fourth Proportional to 848,342.40, 1,272,076.20 and 315,589.20

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Solution

The fourth proportional to 848,342.40, 1,272,076.20 and 315,589.20 is: 473,221.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    848,342.40 : 1,272,076.20 = 315,589.20 : x
  2. Step 2: Convert to fraction form
    848,342.40/1,272,076.20 = 315,589.20/x
  3. Step 3: Cross multiply
    848,342.40x = 1,272,076.20 × 315,589.20
  4. Step 4: Simplify right side
    848,342.40x = 401,453,510,297.04
  5. Step 5: Solve for x
    x = 401,453,510,297.04/848,342.40
  6. Step 6: Final answer
    x = 473,221.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.