Home / 1,147,875.96-1,583,409.42-717,408.78

Finding the Fourth Proportional to 1,147,875.96, 1,583,409.42 and 717,408.78

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Solution

The fourth proportional to 1,147,875.96, 1,583,409.42 and 717,408.78 is: 989,612.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,147,875.96 : 1,583,409.42 = 717,408.78 : x
  2. Step 2: Convert to fraction form
    1,147,875.96/1,583,409.42 = 717,408.78/x
  3. Step 3: Cross multiply
    1,147,875.96x = 1,583,409.42 × 717,408.78
  4. Step 4: Simplify right side
    1,147,875.96x = 1,135,951,820,242.71
  5. Step 5: Solve for x
    x = 1,135,951,820,242.71/1,147,875.96
  6. Step 6: Final answer
    x = 989,612.00

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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.