Home / 428,488.12-591,303.54-247,200.44

Finding the Fourth Proportional to 428,488.12, 591,303.54 and 247,200.44

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Solution

The fourth proportional to 428,488.12, 591,303.54 and 247,200.44 is: 341,130.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,488.12 : 591,303.54 = 247,200.44 : x
  2. Step 2: Convert to fraction form
    428,488.12/591,303.54 = 247,200.44/x
  3. Step 3: Cross multiply
    428,488.12x = 591,303.54 × 247,200.44
  4. Step 4: Simplify right side
    428,488.12x = 146,170,495,261.56
  5. Step 5: Solve for x
    x = 146,170,495,261.56/428,488.12
  6. Step 6: Final answer
    x = 341,130.80

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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.