Home / 800,766.81-1,105,010.91-438,118.47

Finding the Fourth Proportional to 800,766.81, 1,105,010.91 and 438,118.47

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Solution

The fourth proportional to 800,766.81, 1,105,010.91 and 438,118.47 is: 604,577.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,766.81 : 1,105,010.91 = 438,118.47 : x
  2. Step 2: Convert to fraction form
    800,766.81/1,105,010.91 = 438,118.47/x
  3. Step 3: Cross multiply
    800,766.81x = 1,105,010.91 × 438,118.47
  4. Step 4: Simplify right side
    800,766.81x = 484,125,689,222.51
  5. Step 5: Solve for x
    x = 484,125,689,222.51/800,766.81
  6. Step 6: Final answer
    x = 604,577.62

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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.