Home / 438,741.15-604,877.28-348,396.18

Finding the Fourth Proportional to 438,741.15, 604,877.28 and 348,396.18

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Solution

The fourth proportional to 438,741.15, 604,877.28 and 348,396.18 is: 480,321.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,741.15 : 604,877.28 = 348,396.18 : x
  2. Step 2: Convert to fraction form
    438,741.15/604,877.28 = 348,396.18/x
  3. Step 3: Cross multiply
    438,741.15x = 604,877.28 × 348,396.18
  4. Step 4: Simplify right side
    438,741.15x = 210,736,933,720.79
  5. Step 5: Solve for x
    x = 210,736,933,720.79/438,741.15
  6. Step 6: Final answer
    x = 480,321.79

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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.