Home / 505,928.90-757,533.38-385,411.70

Finding the Fourth Proportional to 505,928.90, 757,533.38 and 385,411.70

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Solution

The fourth proportional to 505,928.90, 757,533.38 and 385,411.70 is: 577,081.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,928.90 : 757,533.38 = 385,411.70 : x
  2. Step 2: Convert to fraction form
    505,928.90/757,533.38 = 385,411.70/x
  3. Step 3: Cross multiply
    505,928.90x = 757,533.38 × 385,411.70
  4. Step 4: Simplify right side
    505,928.90x = 291,962,222,077.82
  5. Step 5: Solve for x
    x = 291,962,222,077.82/505,928.90
  6. Step 6: Final answer
    x = 577,081.53

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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.