Home / 766,587.73-1,057,847.38-439,831.48

Finding the Fourth Proportional to 766,587.73, 1,057,847.38 and 439,831.48

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Solution

The fourth proportional to 766,587.73, 1,057,847.38 and 439,831.48 is: 606,942.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,587.73 : 1,057,847.38 = 439,831.48 : x
  2. Step 2: Convert to fraction form
    766,587.73/1,057,847.38 = 439,831.48/x
  3. Step 3: Cross multiply
    766,587.73x = 1,057,847.38 × 439,831.48
  4. Step 4: Simplify right side
    766,587.73x = 465,274,580,341.95
  5. Step 5: Solve for x
    x = 465,274,580,341.95/766,587.73
  6. Step 6: Final answer
    x = 606,942.38

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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.