Home / 449,535.10-620,359.68-245,587.90

Finding the Fourth Proportional to 449,535.10, 620,359.68 and 245,587.90

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Solution

The fourth proportional to 449,535.10, 620,359.68 and 245,587.90 is: 338,911.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,535.10 : 620,359.68 = 245,587.90 : x
  2. Step 2: Convert to fraction form
    449,535.10/620,359.68 = 245,587.90/x
  3. Step 3: Cross multiply
    449,535.10x = 620,359.68 × 245,587.90
  4. Step 4: Simplify right side
    449,535.10x = 152,352,831,055.87
  5. Step 5: Solve for x
    x = 152,352,831,055.87/449,535.10
  6. Step 6: Final answer
    x = 338,911.98

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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.