Home / 386,317.60-579,476.40-365,581.60

Finding the Fourth Proportional to 386,317.60, 579,476.40 and 365,581.60

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Solution

The fourth proportional to 386,317.60, 579,476.40 and 365,581.60 is: 548,372.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,317.60 : 579,476.40 = 365,581.60 : x
  2. Step 2: Convert to fraction form
    386,317.60/579,476.40 = 365,581.60/x
  3. Step 3: Cross multiply
    386,317.60x = 579,476.40 × 365,581.60
  4. Step 4: Simplify right side
    386,317.60x = 211,845,909,474.24
  5. Step 5: Solve for x
    x = 211,845,909,474.24/386,317.60
  6. Step 6: Final answer
    x = 548,372.40

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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.