Home / 547,155.42-755,077.59-320,804.70

Finding the Fourth Proportional to 547,155.42, 755,077.59 and 320,804.70

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Solution

The fourth proportional to 547,155.42, 755,077.59 and 320,804.70 is: 442,712.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,155.42 : 755,077.59 = 320,804.70 : x
  2. Step 2: Convert to fraction form
    547,155.42/755,077.59 = 320,804.70/x
  3. Step 3: Cross multiply
    547,155.42x = 755,077.59 × 320,804.70
  4. Step 4: Simplify right side
    547,155.42x = 242,232,439,736.67
  5. Step 5: Solve for x
    x = 242,232,439,736.67/547,155.42
  6. Step 6: Final answer
    x = 442,712.31

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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.