Home / 687,977.83-949,859.05-446,947.34

Finding the Fourth Proportional to 687,977.83, 949,859.05 and 446,947.34

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Solution

The fourth proportional to 687,977.83, 949,859.05 and 446,947.34 is: 617,079.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,977.83 : 949,859.05 = 446,947.34 : x
  2. Step 2: Convert to fraction form
    687,977.83/949,859.05 = 446,947.34/x
  3. Step 3: Cross multiply
    687,977.83x = 949,859.05 × 446,947.34
  4. Step 4: Simplify right side
    687,977.83x = 424,536,975,772.43
  5. Step 5: Solve for x
    x = 424,536,975,772.43/687,977.83
  6. Step 6: Final answer
    x = 617,079.45

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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.