Home / 1,324,128-1,827,296.64-720,520.32

Finding the Fourth Proportional to 1,324,128, 1,827,296.64 and 720,520.32

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Solution

The fourth proportional to 1,324,128, 1,827,296.64 and 720,520.32 is: 994,318.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,324,128 : 1,827,296.64 = 720,520.32 : x
  2. Step 2: Convert to fraction form
    1,324,128/1,827,296.64 = 720,520.32/x
  3. Step 3: Cross multiply
    1,324,128x = 1,827,296.64 × 720,520.32
  4. Step 4: Simplify right side
    1,324,128x = 1,316,604,359,787.72
  5. Step 5: Solve for x
    x = 1,316,604,359,787.72/1,324,128
  6. Step 6: Final answer
    x = 994,318.04

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1.5x scale

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.