Home / 542,849.79-749,020.53-313,403.10

Finding the Fourth Proportional to 542,849.79, 749,020.53 and 313,403.10

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Solution

The fourth proportional to 542,849.79, 749,020.53 and 313,403.10 is: 432,431.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,849.79 : 749,020.53 = 313,403.10 : x
  2. Step 2: Convert to fraction form
    542,849.79/749,020.53 = 313,403.10/x
  3. Step 3: Cross multiply
    542,849.79x = 749,020.53 × 313,403.10
  4. Step 4: Simplify right side
    542,849.79x = 234,745,356,065.64
  5. Step 5: Solve for x
    x = 234,745,356,065.64/542,849.79
  6. Step 6: Final answer
    x = 432,431.51

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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.