Home / 1,475,113.86-2,035,719.92-821,739.11

Finding the Fourth Proportional to 1,475,113.86, 2,035,719.92 and 821,739.11

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Solution

The fourth proportional to 1,475,113.86, 2,035,719.92 and 821,739.11 is: 1,134,034.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,475,113.86 : 2,035,719.92 = 821,739.11 : x
  2. Step 2: Convert to fraction form
    1,475,113.86/2,035,719.92 = 821,739.11/x
  3. Step 3: Cross multiply
    1,475,113.86x = 2,035,719.92 × 821,739.11
  4. Step 4: Simplify right side
    1,475,113.86x = 1,672,830,660,982.78
  5. Step 5: Solve for x
    x = 1,672,830,660,982.78/1,475,113.86
  6. Step 6: Final answer
    x = 1,134,034.94

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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.