Home / 578,147.51-797,823.55-320,035.72

Finding the Fourth Proportional to 578,147.51, 797,823.55 and 320,035.72

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Solution

The fourth proportional to 578,147.51, 797,823.55 and 320,035.72 is: 441,638.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,147.51 : 797,823.55 = 320,035.72 : x
  2. Step 2: Convert to fraction form
    578,147.51/797,823.55 = 320,035.72/x
  3. Step 3: Cross multiply
    578,147.51x = 797,823.55 × 320,035.72
  4. Step 4: Simplify right side
    578,147.51x = 255,332,031,462.56
  5. Step 5: Solve for x
    x = 255,332,031,462.56/578,147.51
  6. Step 6: Final answer
    x = 441,638.21

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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.