Home / 397,865.18-549,262.42-307,024.58

Finding the Fourth Proportional to 397,865.18, 549,262.42 and 307,024.58

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Solution

The fourth proportional to 397,865.18, 549,262.42 and 307,024.58 is: 423,854.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,865.18 : 549,262.42 = 307,024.58 : x
  2. Step 2: Convert to fraction form
    397,865.18/549,262.42 = 307,024.58/x
  3. Step 3: Cross multiply
    397,865.18x = 549,262.42 × 307,024.58
  4. Step 4: Simplify right side
    397,865.18x = 168,637,063,810.28
  5. Step 5: Solve for x
    x = 168,637,063,810.28/397,865.18
  6. Step 6: Final answer
    x = 423,854.79

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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.