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Finding the Fourth Proportional to 580,073.33, 800,648.34 and 396,386.25

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Solution

The fourth proportional to 580,073.33, 800,648.34 and 396,386.25 is: 547,113.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,073.33 : 800,648.34 = 396,386.25 : x
  2. Step 2: Convert to fraction form
    580,073.33/800,648.34 = 396,386.25/x
  3. Step 3: Cross multiply
    580,073.33x = 800,648.34 × 396,386.25
  4. Step 4: Simplify right side
    580,073.33x = 317,365,992,050.67
  5. Step 5: Solve for x
    x = 317,365,992,050.67/580,073.33
  6. Step 6: Final answer
    x = 547,113.58

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1.5x scale

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.