Home / 389,623.60-584,435.40-349,765.53

Finding the Fourth Proportional to 389,623.60, 584,435.40 and 349,765.53

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Solution

The fourth proportional to 389,623.60, 584,435.40 and 349,765.53 is: 524,648.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,623.60 : 584,435.40 = 349,765.53 : x
  2. Step 2: Convert to fraction form
    389,623.60/584,435.40 = 349,765.53/x
  3. Step 3: Cross multiply
    389,623.60x = 584,435.40 × 349,765.53
  4. Step 4: Simplify right side
    389,623.60x = 204,415,357,431.76
  5. Step 5: Solve for x
    x = 204,415,357,431.76/389,623.60
  6. Step 6: Final answer
    x = 524,648.30

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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.