Home / 903,520.08-1,355,290.65-272,439.36

Finding the Fourth Proportional to 903,520.08, 1,355,290.65 and 272,439.36

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Solution

The fourth proportional to 903,520.08, 1,355,290.65 and 272,439.36 is: 408,662.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,520.08 : 1,355,290.65 = 272,439.36 : x
  2. Step 2: Convert to fraction form
    903,520.08/1,355,290.65 = 272,439.36/x
  3. Step 3: Cross multiply
    903,520.08x = 1,355,290.65 × 272,439.36
  4. Step 4: Simplify right side
    903,520.08x = 369,234,517,299.98
  5. Step 5: Solve for x
    x = 369,234,517,299.98/903,520.08
  6. Step 6: Final answer
    x = 408,662.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.